$ git clone -n https://gitee.com/lizhao2025/pixman.git /var/lib/mock/dist-an23-build-496892-74608/root/chroot_tmpdir/scmroot/pixman
Cloning into '/var/lib/mock/dist-an23-build-496892-74608/root/chroot_tmpdir/scmroot/pixman'...
$ git fetch origin a14484e13a476eb166654ccbbc1ef0dc4b645557:KOJI_FETCH_HEAD
From https://gitee.com/lizhao2025/pixman
 * [new ref]         a14484e13a476eb166654ccbbc1ef0dc4b645557 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a14484e Update code from upstream