$ git clone -n https://gitee.com/wenyuzifang/gdk-pixbuf2.git /var/lib/mock/dist-an23-build-480493-74252/root/chroot_tmpdir/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/dist-an23-build-480493-74252/root/chroot_tmpdir/scmroot/gdk-pixbuf2'...
$ git fetch origin 5bc48690de6706ed5070e669d00effa15c3a187d:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/gdk-pixbuf2
 * [new ref]         5bc48690de6706ed5070e669d00effa15c3a187d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5bc4869 Update code from upstream