4670. [cleanup] Ensure that a request MAC is never sent back
in an XFR response unless the signature was
verified. [RT #45494]
(cherry picked from commit 0ad72b96d2)
4670. [cleanup] Ensure that a request MAC is never sent back
in an XFR response unless the signature was
verified. [RT #45494]
(cherry picked from commit 0ad72b96d2)