Meaningless incremental backup issue

[MoonInsung]

In pg_rman, can use the -f option to ignore the dependency and delete the backup file.
Therefore, the full backup file may be deleted and only incremental backups may remain.
(Backup file that cannot actually be used.)

Incremental backup acquisition in this state will succeed without failure.
These problems do not have a significant impact on the pg_rman,
but they do take meaningless incremental backups and must be corrected to avoid backups.
(Incremental backups also have rules that require a full backup file.)