fix(relations): display choices in create form

narrowed selection of select elements to .listselect2
so that only autocomplete elements are reinitialised

fixes #1193

apis_core/relations/templates/apis_core/apis_entities/abstractentity_form.html

@@ -13,7 +13,7 @@
   });
   document.body.addEventListener("reinit_select2", function(evt) {
     form = document.getElementById(evt.detail.value);
-    form.querySelectorAll("select").forEach(element => {
+    form.querySelectorAll(".listselect2").forEach(element => {
       $(element).select2({
         ajax: {
           url: $(element).data("autocomplete-light-url"),