Root cause: handleCreateNoteForRelationship used `await persistNewNote()`
which forced an early React flush. The subsequent frontmatter update
(onAdd/onAddProperty) triggered setTabs in a microtask that collided with
the render batch, causing a radix-ui infinite setState loop
("Maximum update depth exceeded") and a blank white screen.
Two fixes applied:
1. Make handleCreateNoteForRelationship synchronous (fire-and-forget
persistence) to keep all state updates batched — mirrors the working
handleCreateNoteImmediate pattern.
2. Defer onAdd/onAddProperty via setTimeout(0) so the frontmatter update
runs after the tab-switch render completes, avoiding the radix-ui
ref composition loop.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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