$ git clone -n https://src.fedoraproject.org/rpms/ghc-mtlparse.git /var/lib/mock/f38-build-side-42-init-devel-967540-28808/root/chroot_tmpdir/scmroot/ghc-mtlparse
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-967540-28808/root/chroot_tmpdir/scmroot/ghc-mtlparse'...
$ git fetch origin 4c6cf416250bd6d0f1d85146ae888b1f7ea72fd9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mtlparse
 * [new ref]         4c6cf416250bd6d0f1d85146ae888b1f7ea72fd9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c6cf41 Convert to %autorelease and %autochangelog