$ git clone -n https://gitee.com/Yang_X_Y/libavif.git /var/lib/mock/dist-an23-build-448907-73423/root/chroot_tmpdir/scmroot/libavif
Cloning into '/var/lib/mock/dist-an23-build-448907-73423/root/chroot_tmpdir/scmroot/libavif'...
$ git fetch origin 3f762a1628b7d8b2a0395a949865c5e597f4bd5d:KOJI_FETCH_HEAD
From https://gitee.com/Yang_X_Y/libavif
 * [new ref]         3f762a1628b7d8b2a0395a949865c5e597f4bd5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f762a1 Init from upstream