The name filter (and the search-reveal path logic) used to force-expand every
folder on the way to a match, reshaping the tree the moment you typed. If you'd
collapsed everything except the one subtree you cared about, filtering blew the
rest open.
Now the filter only shows/hides rows IN PLACE: expansion is driven solely by the
user's folder.expanded. A collapsed folder that contains matches is still shown
(so you can open it) but stays collapsed — the filter never changes expand state.
Removed the autoOpen() force-expand and the `open` path-map it read.
Tests updated to the new contract: filter hides non-matches in place within
expanded folders, shows match-containing folders collapsed without revealing
their files, and leaves expand state untouched. Classifier suites 68 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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