View → Show Sidebar has a high chance of crashing Orion

Steps to reproduce the issue:

Video of the issue:
This was done on a fresh Orion profile.

Expected behavior:
Orion shouldn't crash when the user wants to toggle the sidebar.

Orion and macOS versions:

Version 0.99.136.2-rc (WebKit 623.1.8.0.0)

Tahoe (26)

Can't reproduce on 0.99.136-beta Sequoia 15.6.1. Did you just see this start to happen on the RC or the macOS update?

I can also reproduce this on Version 0.99.136-beta (WebKit 622.1.15.19.2) and macOS Tahoe.

Also while testing this I noticed 3 different behaviors, not just crashing:

Orion crashes, happens frequently
the view is duplicated (I'm not really sure how else to described it, it's like a screenshot of the window appears on top of the web page, it's shown in the attached video), happens less frequently in my tests
Orion freezes and becomes completely unresponsive (menubar, dock), also happens less frequently

If it helps, here's my method for reproducing this bug:

I can create separate issues for those cases if you prefer (although the steps will likely be the same)

Thanks for the reports @laiz @mk_rsa, we're looking into this.