$ git clone -n https://src.fedoraproject.org/rpms/mygnuhealth.git /var/lib/mock/f42-build-3403668-45135/root/chroot_tmpdir/scmroot/mygnuhealth
Cloning into '/var/lib/mock/f42-build-3403668-45135/root/chroot_tmpdir/scmroot/mygnuhealth'...
$ git fetch origin b15871526084aa3f10792e63b7cd9114ae296b46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mygnuhealth
 * [new ref]         b15871526084aa3f10792e63b7cd9114ae296b46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b158715 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild