Both are the same class as the autocomplete bug fixed in bf68bc0: a handler must never
destroy the DOM node that is being clicked.
feed grid tiles: VirtualFeed keys tiles by upload.id but slices the uploads array
POSITIONALLY (`uploads.slice(i*COLS, …)`). A `new-upload` SSE prepends to the array, so
every tile shifts one slot and each row's keyed {#each} sees a new set of ids — Svelte
destroys and recreates the tile nodes. At a party, where photos stream in continuously, a
guest mid-tap can have the node torn out (tap swallowed) or, worse, like/open a DIFFERENT
photo that slid under their finger. Grid now buffers live arrivals behind the existing
"neue Beiträge" pill; list view is keyed at the top level and stays live.
host rebuild button: it lived inside an SSE-driven {#if exportGenerating}{:else if
exportReady}{:else} block, and rebuildExport() makes the backend broadcast export-progress
immediately — so pressing it flipped the branch and unmounted the button mid-click, on the
one screen whose purpose is recovering a broken keepsake. One button now stays mounted
across all three states; only its label and disabled vary.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>