NPE in git status bar widget [max]

platform/platform-impl/src/com/intellij/openapi/wm/impl/status/EditorBasedWidget.java

@@ -38,6 +38,7 @@ public abstract class EditorBasedWidget extends FileEditorManagerAdapter impleme
   private Project myProject;
 
   protected MessageBusConnection myConnection;
+  private boolean myDisposed;
 
   protected EditorBasedWidget(Project project) {
     myProject = project;
@@ -106,6 +107,8 @@ public abstract class EditorBasedWidget extends FileEditorManagerAdapter impleme
 
   @Override
   public void dispose() {
+    myDisposed = true;
+
     myStatusBar = null;
     if (myConnection != null) {
       myConnection.disconnect();
@@ -113,4 +116,8 @@ public abstract class EditorBasedWidget extends FileEditorManagerAdapter impleme
     }
     myProject = null;
   }
+
+  protected final boolean isDisposed() {
+    return myDisposed;
+  }
 }

plugins/git4idea/src/git4idea/checkout/branches/GitCurrentBranchWidget.java

@@ -127,6 +127,8 @@ public class GitCurrentBranchWidget extends EditorBasedWidget implements StatusB
     Task.Backgroundable task = new Task.Backgroundable(project, "") {
       @Override
       public void run(ProgressIndicator indicator) {
+        if (isDisposed()) return;
+
         String currentBranchName = null;
         if (file != null) {
           AbstractVcs vcs = myVcsManager.getVcsFor(file);