Merge branch 'ide-commit-state-bug' into 'master'

Fixed web IDE review & commit editors getting into incorrect state

Closes #46392

See merge request gitlab-org/gitlab-ce!19038

app/assets/javascripts/ide/components/repo_editor.vue

@@ -43,9 +43,13 @@ export default {
     },
   },
   watch: {
-    file(oldVal, newVal) {
+    file(newVal, oldVal) {
+      if (oldVal.pending) {
+        this.removePendingTab(oldVal);
+      }
+
       // Compare key to allow for files opened in review mode to be cached differently
-      if (newVal.key !== this.file.key) {
+      if (oldVal.key !== this.file.key) {
         this.initMonaco();
 
         if (this.currentActivityView !== activityBarViews.edit) {
@@ -99,6 +103,7 @@ export default {
       'setFileViewMode',
       'setFileEOL',
       'updateViewer',
+      'removePendingTab',
     ]),
     initMonaco() {
       if (this.shouldHideEditor) return;

spec/javascripts/ide/components/repo_editor_spec.js

@@ -346,4 +346,24 @@ describe('RepoEditor', () => {
       });
     });
   });
+
+  it('calls removePendingTab when old file is pending', done => {
+    spyOnProperty(vm, 'shouldHideEditor').and.returnValue(true);
+    spyOn(vm, 'removePendingTab');
+
+    vm.file.pending = true;
+
+    vm
+      .$nextTick()
+      .then(() => {
+        vm.file = file('testing');
+
+        return vm.$nextTick();
+      })
+      .then(() => {
+        expect(vm.removePendingTab).toHaveBeenCalled();
+      })
+      .then(done)
+      .catch(done.fail);
+  });
 });