$ git clone -n https://src.fedoraproject.org/rpms/ghc-mtlparse.git /var/lib/mock/f40-build-1998146-44212/root/chroot_tmpdir/scmroot/ghc-mtlparse
Cloning into '/var/lib/mock/f40-build-1998146-44212/root/chroot_tmpdir/scmroot/ghc-mtlparse'...
$ git fetch origin ec008071281ce3e372dc992c6e16e234ff9c93dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mtlparse
 * [new ref]         ec008071281ce3e372dc992c6e16e234ff9c93dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec00807 bump release