Eli Zaretskii <eliz@gnu.org> writes:

> Indeed.  This is a feature:

Ah, so doing

    (modify-syntax-entry ?’ "w" text-mode-syntax-table)
    (aset char-script-table ?’ 'latin)

does let word motion skip over ’ as OP wanted.

>
> Maybe we should document this somewhere, like the ELisp manual.

`(elisp) Word Motion' looks like a good place for it: