Some articles (https://onlinelibrary.wiley.com/doi/book/10.1002/9781119838883) use a hyphen instead of a hyphen-minus in the title, and the title-casing behavior is different.

If a title contains a hyphen-minus (0x2D, the minus key on the keyboard), then the words surrounding the hyphen-minus are both title-cased as expected in the bibliography (Chicago Manual of Style 18th edition (notes and bibliography). For example, the title "Hyphen-minus-test" results in


Hyphen-Minus-Test. n.d.


If I ask Zotero to title-case the title in the item pane (via right-click -> Title Case), it becomes "Hyphen-Minus-Test" as well.

However, if the title contains a hyphen (0x2010), then the word after the hyphen is not title-cased. For example, the title "Hyphen‐test" results in


Hyphen‐test. n.d.


If I ask Zotero to title-case the title in the item pane, it becomes "Hyphen‐Test", as expected.

This is using version 8.0-beta.24+faf8f2510 (64-bit) on Linux.

Originally reported here: https://github.com/retorquere/zotero-better-bibtex/issues/3363