Stop Popover from closing if mouse event is prevented #19106
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xref: https://github.com/github/accessibility-audits/issues/8591
Description
When the 'x' close button in the branch popover dropdown is invoked, the textbox removes the 'x' close button from the DOM. Next, in the popover component handles the click event looking for a click event "Outside the popover" which it checks for by seeing if the target of the click is contained by the popover... which it isn't now that it has been removed.
Thus, I called e.preventDefault() and in that subsequent popover event handling added the check to see if the event had been prevented and if so to ignore it.
Screenshots
CleanShot.2024-08-14.at.11.01.04.mp4
Video shows invoking the clear button via enter key and via clicking and neither closes the popover.
Release notes
Notes: [Fixed] The branch selection popover in the Open a Pull Request Dialog does not close on filter clearing.