refresh text-mode raw tag editor also when no tags are changed

e.g. when duplicate tag keys are entered or the text input contained empty or invalid lines that need to be cleaned up

modules/ui/sections/raw_tag_editor.js

@@ -372,7 +372,6 @@ export function uiSectionRawTagEditor(id, context) {
         });
 
         var tagDiff = utilTagDiff(_tags, newTags);
-        if (!tagDiff.length) return;
 
         _pendingChange  = _pendingChange || {};
 
@@ -391,6 +390,7 @@ export function uiSectionRawTagEditor(id, context) {
 
         if (Object.keys(_pendingChange).length === 0) {
             _pendingChange = null;
+            section.reRender();
             return;
         }