Issue with ti# in Japanese

[pikurasa]

Description

I tested the latest code (5742a6e Fix: Prevent unnecessary title-case conversion in i18n helper function (#4782)), and I found a behavior similar to #4779

When you go to Japanese and select ti# (シ#), it automatically reverts to mib (ミb). Then, if you go back to English, the pitch becomes unrecognized.

Expected Behavior

Selecting ti# in Japanese should just stay as ti#.

Screenshots

In Japanese, select Ti#:

The pitch automatically becomes mib:

In English, unrecognized pitch:

How to Reproduce

1. Select Japanese (tested with Kanji) as a language
2. Select from a pitch block シ# (ti#)
3. Pitch will automatically convert to ミb, which can be heard; and it can be seen when re-selecting pitch pie menu
4. Select again from a pitch block シ# (ti#)
5. Select English as language
6. Pitch will be loaded as an unrecognized pitch in English (ミbNaN)

(I haven't tested other possible corner cases.)

[saksham-1304]

@pikurasa Please assign me the issue

[VatsalCodes44]

@pikurasa i have understood the issue and familiar with the codebase please assign me the issue.

[kaiju-no-9]

The bug stated above occurs with several other combinations as well. Are there any chances that it is
a default setting when we reclick to set? Please clarify it would be helpful

Screen.Recording.2025-11-04.at.6.45.43.PM.mov

[harshrajsoni]

Hello @pikurasa i have created a PR where i solved this issue... Will you please look into it