1. Visit a Flow board
2. Click the pencil to edit the Flow board header.

Result:
A textarea with the board header's contents appears, but the input focus does not shift to it (no focus highlight, no keyboard caret) and the textarea is one line tall with no scrollbar. Its appearance may come from class flow-input-compressed. This happens on testwiki and mw.org.

Expected result:
When you edit the board header the keyboard focus should be in its textarea, and it should appear expanded, just as when you Edit your own post. The latter has class `flow-form-collapsible.

Possibly related: if the displayed board header is quite tall and you scroll so the pencil to edit it is near the top of the screen, then when you click the pencil you don't even see this one-line textarea on-screen. Maybe Flow is trying to scroll, and set the input focus to, a wrong textarea identifier.