Kotoeri (Japanese) middle dot function broken in Lion?

I've been using Kotoeri (OS X's Japanese input method thing) for a few years now, and one of the things i always do when i use it is set the slash ( / ) key to return a middle dot by default (・). This worked great until i updated to Lion. Now, no matter what i do, Lion always acts like the option is set to produce the / character instead.

STEPS TO REPRODUCE:

1. Go to System Preferences > Language & Text > Input Sources, and enable Katakana under Kotoeri.

2. Make sure 'Show Input menu in menu bar' is ticked.

3. Switch to katakana keyboard input.

4. Go to the Input menu in the menu bar and select 'Kotoeri Preferences'.

5. On the 'Character' tab, note the setting that says 'Character entered by pressing / key'. Every time i attempted this, OS X set it to middle dot by default — which is fine with me of course.

6. Try opening TextEdit and typing something that contains a middle dot, like ティム・クック (t e x i m u / k u k k u) — it produces ティム／クック instead.

7. Try switching 'Character entered by pressing / key' back to / and then try again — same result.

8. Try pressing Option+/ when either setting is selected — it acts like / is selected no matter what. (In other words, Opt+/ always produces middle dot, even when it's supposed to produce slash instead. I guess this is the work-around, but it's not the behaviour i want, nor the one i had in the past.)

OTHER NOTES:

I had a friend (who is also on Lion) test this on his Macbook — same result.

I've also tried disabling Kotoeri, trashing all of my Kotoeri preferences from ~/Library, and then re-enabling it — same result.

Lastly, i monitored ~/Library/com.apple.inputmethod.Kotoeri.plist as i switched the above setting back and forth. The plist does appear to be updating correctly. The key 'chsl' is set to 0 when slash is selected, and set to 1 when middle dot is selected.

Does anyone else have any ideas before i submit this on the Radar?

Thanks!