fix current file

apps/remix-ide/src/app/editor/editor.js

@@ -143,6 +143,7 @@ class Editor extends Plugin {
     this.on('fileManager', 'fileClosed', (name) => {
       if (name === this.currentFile) {
         this.currentFile = null
+        this.renderComponent()
       }
     })
     this.on('theme', 'themeLoaded', (theme) => {

libs/remix-ui/editor/src/lib/remix-ui-editor.tsx

@@ -228,7 +228,7 @@ export const EditorUI = (props: EditorUIProps) => {
 
 
   useEffect(() => {
-    if (!editorRef.current) return
+    if (!editorRef.current || !props.currentFile) return
     currentFileRef.current = props.currentFile
     const file = editorModelsState[props.currentFile]
     editorRef.current.setModel(file.model)