$ git clone -n https://src.fedoraproject.org/rpms/copr-messaging.git /var/lib/mock/f39-build-1638495-40061/root/chroot_tmpdir/scmroot/copr-messaging
Cloning into '/var/lib/mock/f39-build-1638495-40061/root/chroot_tmpdir/scmroot/copr-messaging'...
$ git fetch origin eb4727ba12ee1af0d83a8f7ea1677c55fd11bc99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/copr-messaging
 * [new ref]         eb4727ba12ee1af0d83a8f7ea1677c55fd11bc99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb4727b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild