2c3565cf85
The strip's one switch, whole-branch or this-folder-only, was a plain useState and started every visit deep. Every other thing this screen remembers — the open node, the frame that was up, the column width, the rows left open — is kept by the same helper under a key of its own; this one was left out. It gets a key, a default that only a stored 'false' turns off, and the effect the others have.