Fedora 29 crashing gnome shell. Who can I ask for help?

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Is there a community for testing Fedora releases, how do I help improve these products? How do I report this bug to the people who can diagnose & fix it?

I upgraded to F29 today, and twice Gnome has crashed & logged me out. Both times I was navigating menus in CLion. I can see the stack trace from the gnome shell core-dump in the system journal logs.

I've submitted a bug report to JetBrains, but I suspect this is a Fedora problem as a user application shouldn't be able to core the Gnome shell session.

I don't have a crash report, as the automatic crash reporting tool didn't detect a problem.

Anyone else have this issue?