$ git clone -n https://src.fedoraproject.org/rpms/cm_rgb.git /var/lib/mock/f39-build-1692821-41147/root/chroot_tmpdir/scmroot/cm_rgb
Cloning into '/var/lib/mock/f39-build-1692821-41147/root/chroot_tmpdir/scmroot/cm_rgb'...
$ git fetch origin ab7793b863a3c79dd37650b0adae28d43b205369:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cm_rgb
 * [new ref]         ab7793b863a3c79dd37650b0adae28d43b205369 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab7793b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild