$ git clone -n https://src.fedoraproject.org/rpms/dnsx.git /var/lib/mock/f42-build-3528322-46309/root/chroot_tmpdir/scmroot/dnsx
Cloning into '/var/lib/mock/f42-build-3528322-46309/root/chroot_tmpdir/scmroot/dnsx'...
$ git fetch origin 63f5dee04089b9d6e63e66700019ae849f0ef241:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnsx
 * [new ref]         63f5dee04089b9d6e63e66700019ae849f0ef241 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63f5dee Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild