failed SQL queries with new settings directory

[Be-ing]

Bug Description

Starting Mixxx with a new directory for --settings-path results in failed SQL queries:

Debug [LibraryScanner 1] TrackDAO: Adding track QFileInfo(/home/be/music/Auditive Escape - Auditive Escape/Auditive Escape - Auditive Escape - 02 Morning Sunshine.flac)
Warning [Main] SettingsDAO - Failed to set "mixxx.db.model.missing.ColumnsSorting" = QVariant(QString, "artist 1 ") QSqlError("5", "Unable to fetch row", "database is locked")
Critical [Main] DEBUG ASSERT: "!"Failed query"" in function bool SettingsDAO::setValue(const QString &, const QVariant &) const at /home/be/sw/mixxx/src/library/dao/settingsdao.cpp:76
Debug [Main] HiddenTableModel(0x4801990) select() took 0 ms 0

The initial library scan seems to work; I'm not sure if these failed queries have downstream consequences.

Version

main 9ad1047

OS

Fedora 36