$ git clone -n https://gitee.com/wenyuzifang/ffmpeg.git /var/lib/mock/dist-an23-build-570491-92560/root/chroot_tmpdir/scmroot/ffmpeg
Cloning into '/var/lib/mock/dist-an23-build-570491-92560/root/chroot_tmpdir/scmroot/ffmpeg'...
$ git fetch origin c79589dfcf1ff82b69738a2c044b1996b3f1d665:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/ffmpeg
 * [new ref]         c79589dfcf1ff82b69738a2c044b1996b3f1d665 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c79589d [CVE] [Upstream] add patch to fix CVE-2025-22921