Fixes #7534: Avoid exception when utilizing "create and add another" twice in succession

netbox/netbox/views/generic.py

@@ -282,11 +282,11 @@ class ObjectEditView(GetReturnURLMixin, ObjectPermissionRequiredMixin, View):
                 messages.success(request, mark_safe(msg))
 
                 if '_addanother' in request.POST:
-                    redirect_url = request.get_full_path()
+                    redirect_url = request.path
 
                     # If the object has clone_fields, pre-populate a new instance of the form
                     if hasattr(obj, 'clone_fields'):
-                        redirect_url += f"{'&' if '?' in redirect_url else '?'}{prepare_cloned_fields(obj)}"
+                        redirect_url += f"?{prepare_cloned_fields(obj)}"
 
                     return redirect(redirect_url)