After applying the update/fix the problem is still not solved. How it reproduces for me: - Start a 64-bit fedora31beta VM, with the fix applied in it. It is not even required to use it or login. - On the host, fully updated Fedora30 64-bit workstation, copy text from a browser windows to a text editor. - Every 2nd copy/paste action will fail because of the clipboard being empty; it's really a pattern of hit-miss-hit-miss-hit-miss etc.. - A soon as the guest VM is shutdown the problem disappears.
I hope this helps to fix the bug; if I can do any more testing please let me know.
Thx. Regards, Ids.