[SCIM] last Korean word disappear when change input method and press trigger key.

[Kitae]

Hi, 

After input any Korean word(in scim-hangul input method), if I change to
other input method or re-press scim trigger key, last Korean disappear.

If I put space, dot, comma and number that doesn't happen.
In scim-hangul input method, switching Hangul to English is work fine.

scim-lib version is 0.99.9
scim-hangul version is 0.1.2 


Thanks

Kitae