ibus can't select past the first five choices

The ibus can't select past the first five choices. after turning to second page or more, pressing 1~5 will not get that corresponding character/word, but something entirely unrelated instead.

13.10下的ibus-googlepinyin就已经不能输入前五个选项以外的字词了--即，凡是要翻页的，翻页以后就不能正常选字、词了。13.10下的ibus-table-wubi也有同样的问题。

All ibus related packages installed in my Ubuntu 13.10, problem shows up as early as:

 gir1.2-ibus-1.0_1.5.3-6ubuntu2.1
 ibus_1.5.3-6ubuntu2.1
 ibus-googlepinyin_0.1.2-2
 ibus-pinyin_1.4.0-2ubuntu2
 ibus-pinyin-db-open-phrase_1.4.0-2ubuntu2
 ibus-table_1.5.0.is.1.5.0-0ubuntu1
 ibus-table-wubi_1.4.0.20121008-1
 libibus-1.0-5:amd64_1.5.3-6ubuntu2
 libusb-0.1-4:amd64_2:0.1.12-23.2ubuntu1
 libusb-1.0-0:amd64_2:1.0.16-3
 libusbmuxd2_1.0.8-1ubuntu1
 libustr-1.0-1:amd64_1.0.4-3ubuntu1
 python-ibus_1.5.3-6ubuntu2.1

$ lsb_release -rd
Description: Ubuntu 13.10
Release: 13.10

$ uname -rm
3.11.0-26-generic x86_64