This change skips most of the save() function for zones when only the SOA serial has to be updated. Some code related to the migration from very early versions of NetBox DNS to a consistent database (essentially getting rid of duplicate SOA entries, which should no longer exist in a recent installation) was removed.
fixes #239
This change skips most of the save() function for zones when only the SOA serial has to be updated. Some code related to the migration from very early versions of NetBox DNS to a consistent database (essentially getting rid of duplicate SOA entries, which should no longer exist in a recent installation) was removed.