Tweak PotentialFellow invitation email

templates/email/potentialfellowships/invite_potential_fellow_initial.html

@@ -2,7 +2,7 @@
 
 <p>Hopefully you're aware of <a href="https://scipost.org{% url 'scipost:index' %}">SciPost</a> and of its mission to establish a healthier community-run, open and not-for-profit infrastructure for scientific publishing (see our <a href="https://scipost.org{% url 'scipost:about' %}">about page</a> for a quick introduction or reminder).</p>
 
-<p>Having successfully initiated our activities in the field of Physics, we would now like to bring the benefits of our approach to scientists in other fields of science, in particular {{ object.profile.acad_field }}. We are therefore launching <a href="https://scipost.org{% url 'journals:journals' %}?field={{ object.profile.acad_field }}">new journals in {{ object.profile.acad_field }}</a>, aiming to achieve the same success we have had with our <a href="https://scipost.org{% url 'journals:journals' %}?field=physics">Physics journals</a>.
+{% if object.profile.acad_field %}{% if object.profile.acad_field.slug != 'physics' %}<p>Having successfully initiated our activities in the field of Physics, we would now like to bring the benefits of our approach to scientists in other fields of science, in particular {{ object.profile.acad_field }}. We are therefore launching <a href="https://scipost.org{% url 'journals:journals' %}?field={{ object.profile.acad_field }}">new journals in {{ object.profile.acad_field }}</a>, aiming to achieve the same success we have had with our <a href="https://scipost.org{% url 'journals:journals' %}?field=physics">Physics journals</a>.{% endif %}{% endif %}
 
 <p>On behalf of the SciPost Foundation and in view of your professional expertise and reputation, I hereby would like to invite you to join the {{ object.college }} by becoming one of our Editorial Fellows.</p>