BlindingDark/rime-lua-select-character

AI Summary: The user is experiencing an issue with the Rime input method's '以词定字' (select character by word) extension. After installing the extension, pressing the designated keys (comma and period by default) to select the first or last character of a composed word results in the entire word and the key being displayed, instead of just the selected character. The task is to debug this issue, likely involving examination of the Rime configuration files (default.yaml and luna_pinyin.schema.yaml) and potentially the Lua script itself to identify why the keystrokes are not being properly interpreted and only the selected character is not being sent to the input field.