$ git clone -n https://src.fedoraproject.org/rpms/ghc-cryptohash-md5.git /var/lib/mock/f45-build-10161-414/root/chroot_tmpdir/scmroot/ghc-cryptohash-md5
Cloning into '/var/lib/mock/f45-build-10161-414/root/chroot_tmpdir/scmroot/ghc-cryptohash-md5'...
$ git fetch origin fc73e7a42ea60e706723b9db47d05b255613f275:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cryptohash-md5
 * [new ref]         fc73e7a42ea60e706723b9db47d05b255613f275 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc73e7a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild