This was fixed in Beta 4 - at least, almost. Unfortunately, the cursor no longer appears in the search field by default. This was implemented in 4.4.0 after a long wait - it would be great if it could be reinstated.
The shortcuts keys have changed from Ctrl+Alt+F to Ctrl+Shift+F. Perhaps this is related. (I preferred the previous Ctrl+Alt+F, but it’s not much of an issue.)