$ git clone -n https://src.fedoraproject.org/rpms/ghc-path.git /var/lib/mock/f45-build-10585-419/root/chroot_tmpdir/scmroot/ghc-path
Cloning into '/var/lib/mock/f45-build-10585-419/root/chroot_tmpdir/scmroot/ghc-path'...
$ git fetch origin 6e6ea3bb5b52da979633d48b3085416e523e1a13:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-path
 * [new ref]         6e6ea3bb5b52da979633d48b3085416e523e1a13 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e6ea3b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild