Read more links broken when Title contans EN DASH

[effex100]

This is most commonly seen when content is being copied from Word or some other word processor that converts regular dashes "-" to the longer EN DASH "%e2%80%93". The automatically generated slug will save the EN DASH as "-%e2%80%93-". This will cause the generated permalink to fail.

[hafman]

I think this happened to a client recently,though not with "Read More..." A group of pages weren't appearing in menus and some changes to the slugs of these pages (in quick view) cured it. It seems though that WordPress is converting white space in a pasted title to a slug with illegal characters here. If so, it might be a more important issue?

[markjaquith]

Confirmed. We're working on a plan to upgrade post slugs to remove problematic characters, using the redirect canonical functionality to glue it all together.

[SergeyBiryukov]

Fixed in [18705].