$ git clone -n https://src.fedoraproject.org/rpms/ruby-augeas.git /var/lib/mock/f40-build-777997-129695/root/chroot_tmpdir/scmroot/ruby-augeas
Cloning into '/var/lib/mock/f40-build-777997-129695/root/chroot_tmpdir/scmroot/ruby-augeas'...
$ git fetch origin 5b630333cfd83a1e26bd39d3acaf97b0721ecf36:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ruby-augeas
 * [new ref]         5b630333cfd83a1e26bd39d3acaf97b0721ecf36 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b63033 Correct method definition of augeas_rm