$ git clone -n https://gitee.com/Weisson/groff.git /var/lib/mock/dist-an8.9-build-384442-71925/root/chroot_tmpdir/scmroot/groff
Cloning into '/var/lib/mock/dist-an8.9-build-384442-71925/root/chroot_tmpdir/scmroot/groff'...
$ git fetch origin bf3226efc08a798ac8e7da645af2144e21deee38:KOJI_FETCH_HEAD
From https://gitee.com/Weisson/groff
 * [new ref]         bf3226efc08a798ac8e7da645af2144e21deee38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf3226e Add sw_64.