Phanpy strips zero witdh spaces

[fl4nn]

Site

phanpy.squirrel.rocks

Version

2025.04.28.5849b4d

Instance

boosts.squirrel.pictures

Browser

Firefox 138.0.4 on openSUSE Tumbleweed / Xfce 4.20

Bug description

When trying to compose messages containing unicode characters Phanpy does not allow zero width spaces.

When trying to paste text containing zero width spaces, the spaces are stripped.

To reproduce

1. Open the compose window
2. Try to write a fraction like 5​1⁄4
   (5 + ZERO WIDTH SPACE [U+200B] + 1 + FRACTION SLASH [U+2044] + 4)
3. Observe Phanpy quietly dropping the zero with space, making the 5 part of the numerator instead of a separate number

https://github.com/user-attachments/assets/c7256448-587d-41ab-aee6-d392fe58ac3c

Expected behavior

The input is not modified.

Other

No response