I wanted to raise the profile of this bug which I recently submitted. It essentially means you need to to re-enter anything but the simplest of regexes each time you switch to another window. Consider this typical query:
\.[^\d]
When you switch to another window, it’s rendered as:
\\\.\[\^\\d\]
Nearly every character is escaped, and Cmd-G in the new window does nothing. It’s faster to just re-enter the query entirely.
This is actually a regression: 4143 is working as expected. (Quite old, but that’s the version I have handy.)