$ git clone -n https://gitee.com/zhoujiajia111/libass.git /var/lib/mock/dist-an23-dde-build-443025-73211/root/chroot_tmpdir/scmroot/libass
Cloning into '/var/lib/mock/dist-an23-dde-build-443025-73211/root/chroot_tmpdir/scmroot/libass'...
$ git fetch origin cda415fc9b5256bd48dc2773074dc06c99530daf:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/libass
 * [new ref]         cda415fc9b5256bd48dc2773074dc06c99530daf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cda415f Update version to fix CVE-2020-24994