$ git clone -n https://src.fedoraproject.org/rpms/perl-Unix-Mknod.git /var/lib/mock/f40-build-779178-130216/root/chroot_tmpdir/scmroot/perl-Unix-Mknod
Cloning into '/var/lib/mock/f40-build-779178-130216/root/chroot_tmpdir/scmroot/perl-Unix-Mknod'...
$ git fetch origin 219707dbd119e64d84c1aa19bc05b83bee696300:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Unix-Mknod
 * [new ref]         219707dbd119e64d84c1aa19bc05b83bee696300 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 219707d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild