$ git clone -n https://src.fedoraproject.org/rpms/ghc-clock.git /var/lib/mock/f40-build-775985-128553/root/chroot_tmpdir/scmroot/ghc-clock
Cloning into '/var/lib/mock/f40-build-775985-128553/root/chroot_tmpdir/scmroot/ghc-clock'...
$ git fetch origin 6a97fb9468d29025124757f75196c8ad05a92be1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-clock
 * [new ref]         6a97fb9468d29025124757f75196c8ad05a92be1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a97fb9 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild