diff --git a/submissions/migrations/0070_auto_20170925_2124.py b/submissions/migrations/0070_auto_20170925_2124.py
index a51468cc32f0953d7c41c6066a1e36286a37f7d6..05381bc93ffe513e901c2074ad32db6938b26b58 100644
--- a/submissions/migrations/0070_auto_20170925_2124.py
+++ b/submissions/migrations/0070_auto_20170925_2124.py
@@ -3,7 +3,6 @@
 from __future__ import unicode_literals
 
 from django.db import migrations, models
-import django.db.models.deletion
 
 
 class Migration(migrations.Migration):
@@ -13,59 +12,10 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
-        migrations.AlterField(
-            model_name='refereeinvitation',
-            name='referee',
-            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='referee_invitations', to='scipost.Contributor'),
-        ),
         migrations.AlterField(
             model_name='submission',
             name='author_comments',
             field=models.TextField(blank=True, default=''),
             preserve_default=False,
         ),
-        migrations.AlterField(
-            model_name='submission',
-            name='authors',
-            field=models.ManyToManyField(blank=True, related_name='submissions', to='scipost.Contributor'),
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='authors_claims',
-            field=models.ManyToManyField(blank=True, related_name='claimed_submissions', to='scipost.Contributor'),
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='authors_false_claims',
-            field=models.ManyToManyField(blank=True, related_name='false_claimed_submissions', to='scipost.Contributor'),
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='list_of_changes',
-            field=models.TextField(blank=True, default=''),
-            preserve_default=False,
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='referees_flagged',
-            field=models.TextField(blank=True, default=''),
-            preserve_default=False,
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='referees_suggested',
-            field=models.TextField(blank=True, default=''),
-            preserve_default=False,
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='remarks_for_editors',
-            field=models.TextField(blank=True, default=''),
-            preserve_default=False,
-        ),
-        migrations.AlterField(
-            model_name='submission',
-            name='submitted_by',
-            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='submitted_submissions', to='scipost.Contributor'),
-        ),
     ]
diff --git a/submissions/migrations/0071_auto_20170928_2022.py b/submissions/migrations/0071_auto_20170928_2022.py
new file mode 100644
index 0000000000000000000000000000000000000000..9cd9b9535cf0885adcbb6ada625ad17a5e19be0b
--- /dev/null
+++ b/submissions/migrations/0071_auto_20170928_2022.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-09-28 18:22
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submissions', '0070_auto_20170925_2124'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='refereeinvitation',
+            name='referee',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='referee_invitations', to='scipost.Contributor'),
+        ),
+        migrations.AlterField(
+            model_name='submission',
+            name='submitted_by',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='submitted_submissions', to='scipost.Contributor'),
+        ),
+    ]
diff --git a/submissions/migrations/0072_auto_20170928_2022.py b/submissions/migrations/0072_auto_20170928_2022.py
new file mode 100644
index 0000000000000000000000000000000000000000..e3b3b36fe8a4731e2fe187e8455c65a1c6fe799c
--- /dev/null
+++ b/submissions/migrations/0072_auto_20170928_2022.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-09-28 18:22
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submissions', '0071_auto_20170928_2022'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='submission',
+            name='list_of_changes',
+            field=models.TextField(blank=True, default=''),
+            preserve_default=False,
+        ),
+    ]
diff --git a/submissions/migrations/0073_auto_20170928_2023.py b/submissions/migrations/0073_auto_20170928_2023.py
new file mode 100644
index 0000000000000000000000000000000000000000..bae204d2343331a0bc0b0cd8358dc6ed97f98064
--- /dev/null
+++ b/submissions/migrations/0073_auto_20170928_2023.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-09-28 18:23
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submissions', '0072_auto_20170928_2022'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='submission',
+            name='authors',
+            field=models.ManyToManyField(blank=True, related_name='submissions', to='scipost.Contributor'),
+        ),
+        migrations.AlterField(
+            model_name='submission',
+            name='authors_claims',
+            field=models.ManyToManyField(blank=True, related_name='claimed_submissions', to='scipost.Contributor'),
+        ),
+        migrations.AlterField(
+            model_name='submission',
+            name='authors_false_claims',
+            field=models.ManyToManyField(blank=True, related_name='false_claimed_submissions', to='scipost.Contributor'),
+        ),
+    ]
diff --git a/submissions/migrations/0074_auto_20170928_2024.py b/submissions/migrations/0074_auto_20170928_2024.py
new file mode 100644
index 0000000000000000000000000000000000000000..8c958fd639af3c8254b039c7a60b50a6da95e2c1
--- /dev/null
+++ b/submissions/migrations/0074_auto_20170928_2024.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-09-28 18:24
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submissions', '0073_auto_20170928_2023'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='submission',
+            name='referees_flagged',
+            field=models.TextField(blank=True, default=''),
+            preserve_default=False,
+        ),
+    ]
diff --git a/submissions/migrations/0075_auto_20170928_2024.py b/submissions/migrations/0075_auto_20170928_2024.py
new file mode 100644
index 0000000000000000000000000000000000000000..235763bdb328990da21bad47c2ae879ce9a44288
--- /dev/null
+++ b/submissions/migrations/0075_auto_20170928_2024.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-09-28 18:24
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submissions', '0074_auto_20170928_2024'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='submission',
+            name='referees_suggested',
+            field=models.TextField(blank=True, default=''),
+            preserve_default=False,
+        ),
+    ]
diff --git a/submissions/migrations/0076_auto_20170928_2024.py b/submissions/migrations/0076_auto_20170928_2024.py
new file mode 100644
index 0000000000000000000000000000000000000000..4ea15d274d0a9188c99c4668a754956d9abaf65b
--- /dev/null
+++ b/submissions/migrations/0076_auto_20170928_2024.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2017-09-28 18:24
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submissions', '0075_auto_20170928_2024'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='submission',
+            name='remarks_for_editors',
+            field=models.TextField(blank=True, default=''),
+            preserve_default=False,
+        ),
+    ]