database drop may leave system tablets in root hive #19842
Description
YDBOPS-12120
Investigate the problem, and find if it can be related to enabling feature flag enable_alter_database_create_hive_first in 25-1.
UPD: No it is not. It seams that the issue is in race condition between deletion of tenant's system tablets (including tenant hive), which require tenant hive to be alive, and the actual disappearance of the tenant hive itself (due to tenant nodes shutdown for example).