Mark Andrews
83af4fc90b
This moves these zone content checks to an off loaded work thread for AXFR rather than have them be processed in axfr_apply_done. For IXFR dns_zone_checkzonemd and dns_zone_verifydb are already being processed in an off loaded work thread (ixfr_apply -> ixfr_apply_one -> ixfr_end_transaction).