Ticket #35401: 35401.patch

src/wp-admin/js/inline-edit-post.js

@@ -284 +284 @@
                                 }
                         },
                 'html');
+                // Prevent submitting the form when pressing Enter on a focused field.
                 return false;
         },
 

src/wp-admin/js/inline-edit-tax.js

@@ -137 +137 @@
                                 }
                         }
                 );
+                // Prevent submitting the form when pressing Enter on a focused field.
+                return false;
         },
 
         revert : function() {