$ git clone -n https://src.fedoraproject.org/rpms/bless.git /var/lib/mock/f39-build-1965155-43291/root/chroot_tmpdir/scmroot/bless
Cloning into '/var/lib/mock/f39-build-1965155-43291/root/chroot_tmpdir/scmroot/bless'...
$ git fetch origin 6678ce6cb5f9a94d90ef18eae29513667c566d71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bless
 * [new ref]         6678ce6cb5f9a94d90ef18eae29513667c566d71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6678ce6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild