Electron fills the playlist store from DB_GET_APP_PLAYLIST_METAS, which
reads the metadata columns only. hiddenGroupTitles lives only in the JSON
payload, so after a restart the store had none and the groups rail showed
every group, although SQLite still held the saved selection; saving the
dialog from that state then overwrote it.
M3uWorkspaceRouteSession already reads the full playlist to publish its
channels and favorites. It now copies hiddenGroupTitles from that read into
the store (updatePlaylistMeta, persist: false) before the channels, unless
the store value changed while the read was queued behind a save.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
