Every redraw replaced the whole row, and the browser sends no click to
an element that left the page during the press. Three things redraw in
that gap: ComfyUI's graphChanged at mouseup, the answer to a count, and
a run ending. The last also wiped a count being typed. Update the
elements in place, a save's part only for that save.
Tested with a real mouse on an isolated ComfyUI: 19 flows, 5 of them
passing before the fix. tests/snapshot_bar.html fails 7 checks on the
old code.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>