$ git clone -n https://gitee.com/mapicccy/aa-nginx.git /var/lib/mock/dist-an8.8-build-333883-69617/root/chroot_tmpdir/scmroot/aa-nginx
Cloning into '/var/lib/mock/dist-an8.8-build-333883-69617/root/chroot_tmpdir/scmroot/aa-nginx'...
$ git fetch origin 949a172b3fb53a736220e06a36f76d55c9ecdf8e:KOJI_FETCH_HEAD
From https://gitee.com/mapicccy/aa-nginx
 * [new ref]         949a172b3fb53a736220e06a36f76d55c9ecdf8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 949a172 add aa-nginx for a8