$ git clone -n https://gitee.com/wenyuzifang/gdk-pixbuf2.git /var/lib/mock/dist-an23-build-469512-74027/root/chroot_tmpdir/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/dist-an23-build-469512-74027/root/chroot_tmpdir/scmroot/gdk-pixbuf2'...
$ git fetch origin 747d2e616c1a156e5dc4f5a7e56a4e38d11de7f8:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/gdk-pixbuf2
 * [new ref]         747d2e616c1a156e5dc4f5a7e56a4e38d11de7f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 747d2e6 Update code from upstream