$ git clone -n https://gitee.com/yangcheng1203/webkitgtk-1202.git /var/lib/mock/dist-an23-build-494728-74593/root/chroot_tmpdir/scmroot/webkitgtk-1202
Cloning into '/var/lib/mock/dist-an23-build-494728-74593/root/chroot_tmpdir/scmroot/webkitgtk-1202'...
$ git fetch origin b61e2c49e55430d60930f1e9c68e16c774a198a8:KOJI_FETCH_HEAD
From https://gitee.com/yangcheng1203/webkitgtk-1202
 * [new ref]         b61e2c49e55430d60930f1e9c68e16c774a198a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b61e2c4 update to 2.50.3