The slave's bw-managed zone files are rendered from the master's
metadata at slave-apply time. Changing a record on the master only
publishes once both bw apply runs are done. The left4me-integration
session burned ~20 minutes assuming bw apply on htz.mails would
propagate to ovh.secondary via bind's own AXFR; it doesn't, because
bw verify measures the on-disk file, not the running zone.
Frame as the workflow rule rather than the absolute "not AXFR"
claim — the bundle does set type slave; in named.conf.local, but
that's orthogonal to the practical apply-both rule.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>