IME input is not correct (too many insertions into the editor)

[rocketraman]

(Reported by user @Yixi)

When typing IME input e.g. "zhongwen" with Chinese Pinyin IME, the input into the editor is incorrect. IME input "zhongwen" should output "中文" in the editor.

[rocketraman]

Ritzy uses React synthetic events as its input system, and React does not correctly deal with IME input. The onChange event for the input is firing before the IME input is complete. See facebook/react#3926.