$ git clone -n https://src.fedoraproject.org/rpms/colorgcc.git /var/lib/mock/f39-build-1457134-32964/root/chroot_tmpdir/scmroot/colorgcc
Cloning into '/var/lib/mock/f39-build-1457134-32964/root/chroot_tmpdir/scmroot/colorgcc'...
$ git fetch origin beb625bbd726738208c269c8bec8580e930e5e13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/colorgcc
 * [new ref]         beb625bbd726738208c269c8bec8580e930e5e13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at beb625b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild