$ git clone -n https://src.fedoraproject.org/rpms/ghc-crypto-cipher-types.git /var/lib/mock/f41-build-839860-160377/root/chroot_tmpdir/scmroot/ghc-crypto-cipher-types
Cloning into '/var/lib/mock/f41-build-839860-160377/root/chroot_tmpdir/scmroot/ghc-crypto-cipher-types'...
$ git fetch origin 4eebb64061bb957f729006e2e7326f305b4b4ca1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-crypto-cipher-types
 * [new ref]         4eebb64061bb957f729006e2e7326f305b4b4ca1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4eebb64 bump release