$ git clone -n https://gitee.com/zhoujiajia111/pulseaudio.git /var/lib/mock/dist-an23-build-445612-73283/root/chroot_tmpdir/scmroot/pulseaudio
Cloning into '/var/lib/mock/dist-an23-build-445612-73283/root/chroot_tmpdir/scmroot/pulseaudio'...
$ git fetch origin e8ebe12918703b09f01279e5f7255aa58e9b6300:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/pulseaudio
 * [new ref]         e8ebe12918703b09f01279e5f7255aa58e9b6300 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8ebe12 update pulseaudio.spec.