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Description of problem:
- mouse buttons stop responding after clicking on something. 

Version-Release number of selected component (if applicable):
- mutter-3.28.3-4.el7.x86_64
- gtk3-3.22.30-3.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Install RHEL 7.6 "server with gui"(I have not tested 7.5 with kernel and mesa updates, since we were simply looking to replicate)
2. Use all standard options for install. Once installed, configured and running you should be in gnome classic by default.
3. Click on "Applications" in the upper left corner.
4. Scroll over "Accessories".
5. From the Accessories menu, double click "Text Editor" as quickly as possible.  This will lock up the mouse buttons but you will still be able to move the mouse.
6. To get access back to the mouse buttons press ctrl+alt+tab(may take a couple tries) and it will free up the mouse buttons again.

Actual results:
- mouse buttons stop responding

Expected results:
- mouse behaves normally

Additional info:

Created attachment 1513213 [details]
popupMenu: block input events when menu is closing

At the moment gnome-shell can get really confused if a menu is
fading out and gets clicked.

It can lead to mouse pointer input getting stuck until the shell
is restarted.

This commit addresses the problem by ignoring input events that
come in when the menu is closing.

G-nome-shell-3.28.3-17.el7 causes the inability to left click on the entire top bar of gnome shell classic. Previous versions didn't have this problem.

Created attachment 1622015 [details]
0001-boxpointer-Ungrab-pointer-when-hiding.patch

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2020:1021