Thanks for bringing this to my attention @ikeben. I’ve updated my script to fix the issue. You might want to update to the latest version manually instead of waiting for an auto-update.
Note that pressing E to Expand all sections in reviews won’t expand the Kanji Search Notes section. You will have to click the section to expand it individually for now. This should get fixed in a future update, since @Sinyaven plans to add support for E to his awesome WK Item Info Injector helper script, which my script depends on.