$ git clone -n https://src.fedoraproject.org/rpms/astrometry-tycho2.git /var/lib/mock/f40-build-763198-122451/root/chroot_tmpdir/scmroot/astrometry-tycho2
Cloning into '/var/lib/mock/f40-build-763198-122451/root/chroot_tmpdir/scmroot/astrometry-tycho2'...
$ git fetch origin a641ec2b3cb2daf1b923e14f0cf7cac2463aaddf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/astrometry-tycho2
 * [new ref]         a641ec2b3cb2daf1b923e14f0cf7cac2463aaddf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a641ec2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild