$ git clone -n https://gitee.com/yangcheng1203/webkitgtk-1202.git /var/lib/mock/dist-an23-build-494913-74593/root/chroot_tmpdir/scmroot/webkitgtk-1202
Cloning into '/var/lib/mock/dist-an23-build-494913-74593/root/chroot_tmpdir/scmroot/webkitgtk-1202'...
$ git fetch origin 47ad8b037649012080fcf4e563c0dd8208ef5a8d:KOJI_FETCH_HEAD
From https://gitee.com/yangcheng1203/webkitgtk-1202
 * [new ref]         47ad8b037649012080fcf4e563c0dd8208ef5a8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47ad8b0 update to 2.50.3