Crash with a lot of nested error dialogs

[sausagemountain]

They all say:

Woops, something bad happened with Shapeshifter, and it needs to close. We're so sorry!

Steps to reproduce the behavior:

1. Open 2 word documents
2. Start Shapeshifter
3. Copy something from one
4. Paste into another
5. Undo
6. Hold Ctrl+V
7. Get nested error dialog boxes.

Don't know if actually reliable, but I reproduced it 4 or 5 times before submitting this

Expected:
Interface to show up, not crash

OS:
Windows 10 Insiders Preview (Build 18334.19h1_release.190205_1505)

Shapeshifter20190217.log

[ffMathy]

Shapeshifter is currently quite dormant unfortunately. I'm the sole maintainer, doing this for fun, and I have many other open source projects of my making to attend to.

If you'd like to show your support and potentially accelerate the fix of this issue, consider becoming a sponsor on Patreon. That way, you don't actually pay anything unless major updates arrive. And I don't expect them to arrive until quite some time, but if enough people become sponsors, I'll probably start doing this as my main project.

I hope you understand!