$ git clone -n https://src.fedoraproject.org/rpms/ghc-mtlparse.git /var/lib/mock/f41-build-837752-159384/root/chroot_tmpdir/scmroot/ghc-mtlparse
Cloning into '/var/lib/mock/f41-build-837752-159384/root/chroot_tmpdir/scmroot/ghc-mtlparse'...
$ git fetch origin 10391f264c37adcaee31bf3c262448b44dfc0072:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mtlparse
 * [new ref]         10391f264c37adcaee31bf3c262448b44dfc0072 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10391f2 bump release