$ git clone -n https://gitee.com/wency_cn/gdk-pixbuf2.git /var/lib/mock/dist-an23-build-492145-74553/root/chroot_tmpdir/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/dist-an23-build-492145-74553/root/chroot_tmpdir/scmroot/gdk-pixbuf2'...
$ git fetch origin a81bdd26bce3c7b4b9cb0cd2e1360ba3c3bcefe2:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/gdk-pixbuf2
 * [new ref]         a81bdd26bce3c7b4b9cb0cd2e1360ba3c3bcefe2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a81bdd2 Update code from upstream