Reported by nishimotz on 2014-05-17 04:21
setup:

• Windows 8.1 Update (64bit, User Interface Language: English, enabled Japanese Microsoft IME and SAPI5 Japanese Haruka Desktop TTS)
• NVDA 2014.2rc1 (speak typed characters: enabled, automatically report all available candidates: disabled)
• notepad.exe

procedure:

• start notepad application
• type "abc" with English keyboard array. each characters are reported as typed.
• windows+space: switch to Japanese IME
• application key, then upper arrow key twice: if the item is "Close IME", press Escape to cancel. if it is "Open IME", press Enter.
• type "kawa" (reported 'k', 'ka', 'w', 'wa')
• space key (reported 'kawa')
• space key (opened candidate window and reported second candidate)
• enter key (second candidate is selected.): expected to announce the selected candidate 'kawa'. actually only 'candidate' is announced.
• left arrow key or right arrow key: expected to report the character at the caret. actually nothing reported.
• alt key twice: now left or right arrow keys work normally.

As far as we know, Braille display is also not properly updated after the open-close of candidate window (although Japanese Braille is only supported by Japanese forked version of NVDA).

Reverting api.py line 96 regarding #3873 (setFocusObject incorrectly caches container property as parent) seems to resolve the issues as far as we investigated.