[EuiWrappingPopover] Do not re-mount button on componentWillUnmount if button has been unmounted from DOM #1114
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nreese
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chandlerprall
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Aug 13, 2018
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There is a bug in Kibana where the anchor element gets re-attached on
componentWillUnmounteven if the anchor element has been removed from the DOM.To see the bug in action, first open a dashboard in edit mode and click the
Optionstop nav button to open the Options popover.Then click the
Canceltop nav button (while the Options popover is still open). Dashboard will remove theOptionstop nav from the menu bar. but thencomponentWillUnmountwill add it back.It should look like this.
This PR only re-mounts the button component when it still has a parent (is attached to the DOM). I have tested this in Kibana and this fixes the problem shown above