UTF-Non-breaking-Space before Endash is replaced by regular space

[animaux]

php-typography seems to remove intentionally set non-breaking-spaces before en-dashes. We use them in order to prevent lines from starting with a dash, like this [non-breaking-space][en-dash][regular-space].

Through php-typography:

Without php-typography (intended behaviour):

Version is 6.0 (in Craft Typogrify plugin)

[mundschenk-at]

Could you please provide a standalone test case (using just the library)?

[animaux]

Here’s a simple test-case: https://gist.github.com/animaux/ae3e2a96f886f8dedb3ca736194e84a0

Result is different than the one in the craft extension (NO-BREAK SPACE is retained), so the problem seems to be outside php-typography. Closing this, thanks!