$ git clone -n https://gitee.com/wenyuzifang/ffmpeg.git /var/lib/mock/dist-an23.5-build-570518-92601/root/chroot_tmpdir/scmroot/ffmpeg
Cloning into '/var/lib/mock/dist-an23.5-build-570518-92601/root/chroot_tmpdir/scmroot/ffmpeg'...
$ git fetch origin dde27d0f5005020b01e2812ab9f8c0c741cac3f7:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/ffmpeg
 * [new ref]         dde27d0f5005020b01e2812ab9f8c0c741cac3f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dde27d0 [CVE] [Upstream] add patch to fix CVE-2026-6385