Function getGridModelDedupeKey

renderer.js:1327–1333

Stable identity for grid rows: same file path = one row (handles duplicate DB ids).

(model)

    return true;
  }
  if (activeThumbnailRenders.has(model.filePath)) {
    pendingThumbnails.add(model.filePath);
    return false;
  }
  // Stale pending bit (dropped while a race left the flag set)
  if (pendingThumbnails.has(model.filePath)) {
    pendingThumbnails.delete(model.filePath);
  }

  pendingThumbnails.add(model.filePath);