The parent menu of the attributes menu might be showing, thus it needs

to be locked before its font is retrieved or items are added.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40623 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/tracker/ContainerWindow.cpp

@@ -3272,6 +3272,8 @@ BMenu*
 BContainerWindow::AddMimeMenu(const BMimeType& mimeType, bool isSuperType,
 	BMenu* menu, int32 start)
 {
+	AutoLock<BLooper> _(menu->Looper());
+
 	if (!mimeType.IsValid())
 		return NULL;