$ git clone -n https://src.fedoraproject.org/rpms/ghc-cryptohash-sha1.git /var/lib/mock/f45-build-10160-414/root/chroot_tmpdir/scmroot/ghc-cryptohash-sha1
Cloning into '/var/lib/mock/f45-build-10160-414/root/chroot_tmpdir/scmroot/ghc-cryptohash-sha1'...
$ git fetch origin f043246d532a2675714151f8272c042a5665bdb5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cryptohash-sha1
 * [new ref]         f043246d532a2675714151f8272c042a5665bdb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f043246 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild