1. Create a new page and select 'Edit Page's Note'
2. At that time, it's OK to input anything, but
3. Mouse click on the input text area, input focus lost but I can still input English letter.
4. If I didn't input anything after focus lost but switch to Chinese input method 'iBus' and try to input some words.
5. Nothing in the text area. I failed to input Chinese.

My system is Ubuntu 12.04 amd 64, Pencil is 2.0.2 , chinese input method is 'iBus'.