Fix uploading corpus files

app/templates/corpora/add_corpus_file.html.j2

@@ -46,7 +46,7 @@
             <div class="collapsible-header"><i class="material-icons">add</i>Add additional metadata</div>
             <div class="collapsible-body">
               {% for field in form
-                 if field.short_name not in ['author', 'csrf_token', 'file', 'publishing_year', 'submit', 'title'] %}
+                 if field.short_name not in ['author', 'csrf_token', 'vrt', 'publishing_year', 'submit', 'title'] %}
               {{ wtf.render_field(field, material_icon=field.label.text[0:1]) }}
               {% endfor %}
             </div>