$ git clone -n https://src.fedoraproject.org/rpms/dola.git /var/lib/mock/f43-build-side-114909-61018093-6587761/root/chroot_tmpdir/scmroot/dola
Cloning into '/var/lib/mock/f43-build-side-114909-61018093-6587761/root/chroot_tmpdir/scmroot/dola'...
$ git fetch origin a234d939afe68bf94f32f4b4fbffacd54bd02e07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dola
 * [new ref]         a234d939afe68bf94f32f4b4fbffacd54bd02e07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a234d93 Ensure os_install_post commands are NL-terminated