$ git clone -n https://gitee.com/zhoujiajia111/pulseaudio.git /var/lib/mock/dist-an23-build-445616-73283/root/chroot_tmpdir/scmroot/pulseaudio
Cloning into '/var/lib/mock/dist-an23-build-445616-73283/root/chroot_tmpdir/scmroot/pulseaudio'...
$ git fetch origin fdb583255fc4ad0778c4ab10033f1991b851101b:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/pulseaudio
 * [new ref]         fdb583255fc4ad0778c4ab10033f1991b851101b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdb5832 update pulseaudio.spec.