$ git clone -n https://src.fedoraproject.org/rpms/ghc-crypto-pubkey-types.git /var/lib/mock/f41-build-839647-160289/root/chroot_tmpdir/scmroot/ghc-crypto-pubkey-types
Cloning into '/var/lib/mock/f41-build-839647-160289/root/chroot_tmpdir/scmroot/ghc-crypto-pubkey-types'...
$ git fetch origin 18ce130748dddff5de59bde70813dd8e41a1a75e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-crypto-pubkey-types
 * [new ref]         18ce130748dddff5de59bde70813dd8e41a1a75e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18ce130 bump release