Spell checker: can’t add to the dictionary possessives with curly apostrophes (’s)

[Nicolapps]

Description

When the spell checker doesn’t recognize a possessive that uses curly quotes (e.g. Viazovska’s, with ’ = U+2019 Right single quotation mark), clicking “Add to dictionary” doesn’t work: the spell checker still flags the word as spelled incorrectly.

Screen.Recording.2025-08-13.at.11.23.17.mov

Each time “Add to dictionary” is clicked, a new entry is added to the personal dictionary, even if it was already clicked in the past:

Adding the version with the straight apostrophe (' = U+0027 Apostophe) solves the issue, as the version with a curly apostrophe is recognized as correct.

Here’s the Typst code used in the example above:

// Without possessive
Maryna Viazovska is a Ukrainian mathematician known for her work in sphere packing.

// ’ (U+2019 RIGHT SINGLE QUOTATION MARK)
In contrast, Viazovska’s proof for 8 and 24 dimensions is "stunningly simple"

// ' (U+0027 APOSTROPHE)
In contrast, Viazovska's proof for 8 and 24 dimensions is "stunningly simple"

Reproduction URL

No response

Browsers

Safari

OS

macOS

[MDLC01]

This is slightly related to #533 in that quotes in general currently aren't handled in the best way