$ git clone -n https://src.fedoraproject.org/rpms/mcstrans.git /var/lib/mock/f40-build-777889-129619/root/chroot_tmpdir/scmroot/mcstrans
Cloning into '/var/lib/mock/f40-build-777889-129619/root/chroot_tmpdir/scmroot/mcstrans'...
$ git fetch origin 0f1bf8a76d91f65cc2a729ce8a59c589904070ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mcstrans
 * [new ref]         0f1bf8a76d91f65cc2a729ce8a59c589904070ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f1bf8a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild