$ git clone -n https://src.fedoraproject.org/rpms/ghc-hjsmin.git /var/lib/mock/f45-build-10370-416/root/chroot_tmpdir/scmroot/ghc-hjsmin
Cloning into '/var/lib/mock/f45-build-10370-416/root/chroot_tmpdir/scmroot/ghc-hjsmin'...
$ git fetch origin cc3651696583fdfc5b7389a690d83b9f5b0f0270:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hjsmin
 * [new ref]         cc3651696583fdfc5b7389a690d83b9f5b0f0270 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc36516 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild