The database "%1" cannot be dismounted because a backup of the database is in progress. (Note that if a backup was recently ...

The database "%1" cannot be dismounted because a backup of the database is in progress. (Note that if a backup was recently aborted, it may take several minutes for the system to detect the aborted backup and initiate backup cleanup procedures, so this message may be generated if an attempt was made to dismount the database before the backup operation had fully terminated.)