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bug#31371: 26.1; Menu-bar stops working after search

From: Alan Third
Subject: bug#31371: 26.1; Menu-bar stops working after search
Date: Sun, 6 May 2018 11:14:11 +0100
User-agent: Mutt/1.9.3 (2018-01-21)

On Sun, May 06, 2018 at 02:15:57AM +1200, Nick Helm wrote:
> Emacs menu-bar does not work after a help search on macOS.
>   Emacs -Q
>   Click "Help" in the macOS menu-bar
>   Enter any text in the help search field, e.g. "text"
>   Move the mouse pointer to the right until the help menu disappears
>   Move the mouse pointer back over "Help"
> Note that the Help menu does not reappear and the mouse does not move
> correctly (slows down) while moving over the word "Help". Subsequent
> clicks on the menu-bar do not work as expected either. 

Looks like it goes into some sort of infinite loop calling
ns_update_menubar. If you go to the left so it opens some nonā€help
menu, then go back to help it works fine (I think).

The menu code seems pretty horrible to me, so this may take some
Alan Third

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