Opening second layer of right-click context menu in telegram causes the dock to appear on top

[prurigro]

This appears to be the same issue as #1887 except for the second level of context menu.

To reproduce, type some things in the chat input and right click on the text. The dock won't do anything yet, but if you mouse to "Spelling" or "Formatting" and open the second layer (showing spelling suggestions or the formatting options), the dock will appear on top and prevent interacting with the menu. This is the case even when the dock is configured to dodge "All windows" and additional windows are maximized behind telegram.

Let me know if additional information would be helpful and I'll be happy to provide it :)