"Omnibar" is not reachable with the keyboard
This is not new from nightly: it's simply something I encountered again when testing around nightly Builder. There is no way to make the focus reach the area with the two up/down arrows and the project name on its right. Last time I checked (GTK3 Builder) it's because there was a hack with DzlEntry (to make it look like an entry) where it plugged a click event handler to open "omnibar" popover.
Edited by Vanadiae