The handle advertised a gesture it didn't answer to — the drag lived on the
grid alone, so the one part of the screen that says "pull me" was the one
part that ignored being pulled. Grid and handle now drag as a single
surface; the pane stays outside it, since it scrolls and is full of
tappable rows. Tapping the handle still toggles: a parent drag and a child
clickable coexist the same way they do in any scrollable list.
The selection outline was still flickering through an expand or collapse,
and being untagged was not enough to explain it. Tagged pieces paint into
an overlay above the whole regular tree, so the outline — correctly left in
that tree, to keep the collapsed cell's bounds — spent every transition
hidden behind its own morphing pill and reappeared the moment it ended.
It now renders into that same overlay while keeping its own bounds, which
is what the untagged layout was for in the first place.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
bdb16d069e