$ git clone -n https://src.fedoraproject.org/rpms/ghc-oeis.git /var/lib/mock/f40-build-2152254-50906/root/chroot_tmpdir/scmroot/ghc-oeis
Cloning into '/var/lib/mock/f40-build-2152254-50906/root/chroot_tmpdir/scmroot/ghc-oeis'...
$ git fetch origin 6b108eb92d5d821ba5b7ef2c7e1557aa5275ecc8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-oeis
 * [new ref]         6b108eb92d5d821ba5b7ef2c7e1557aa5275ecc8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b108eb bump release