Bug 229351 [Contributions] Customize Perspective dialog removes menu entires
I20080429-0100. (works in 3.4 M6a) 1. start fresh workspace 2. verify that the 'Edit' menu contains, e.g. Cut, Copy, Paste 3. Window > Customize Perspective... 4. click 'Cancel' (alternatively you can go and edit, then click 'OK') 5. observe: menu entries are gone from the 'Edit' menu The user has to restart in order to get the menu working again.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
for (int i = 2; i < 5; ++i) {
            menu.add(new Separator(IWorkbenchActionConstants.SHOW_EXT + i));
        }
        menu.add(new Separator());
        menu.add(nextAction);
        menu.add(previousAction);
        menu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
        menu.add(new GroupMarker(IWorkbenchActionConstants.NAV_END));
        
        menu.add(new Separator());
        menu.add(backwardHistoryAction);
        menu.add(forwardHistoryAction);
        return menu;
    }
    /**
     * Creates and returns the Project menu.
     */
    private MenuManager createProjectMenu() {
        MenuManager menu = new MenuManager(
                IDEWorkbenchMessages.Workbench_project, IWorkbenchActionConstants.M_PROJECT);
        menu.add(new Separator(IWorkbenchActionConstants.PROJ_START));
        menu.add(openProjectItem);
        menu.add(closeProjectItem);
        menu.add(new GroupMarker(IWorkbenchActionConstants.OPEN_EXT));
        menu.add(new Separator());
        menu.add(buildAllAction);
        menu.add(buildProjectAction);
        addWorkingSetBuildActions(menu);
        menu.add(cleanAction);
        menu.add(toggleAutoBuildAction);