$ git clone -n https://src.fedoraproject.org/rpms/ghc-colour.git /var/lib/mock/f45-build-10071-413/root/chroot_tmpdir/scmroot/ghc-colour
Cloning into '/var/lib/mock/f45-build-10071-413/root/chroot_tmpdir/scmroot/ghc-colour'...
$ git fetch origin 16c9c2469fb26148d60a586bbe4d08268592c3e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-colour
 * [new ref]         16c9c2469fb26148d60a586bbe4d08268592c3e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16c9c24 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild