HTML entity is erroneously converted

[p3k]

Steps to reproduce the problem (provide example Markdown if applicable):

This endash: –  
should look like this endash: –

Expected behavior:

This endash: –
should look like this endash: –

Actual behavior:

This endash: –
should look like this endash: –

The reference implementation at https://spec.commonmark.org/dingus/ does behave differently, it displays the expected behavior.

Is this an abberration in the Java implementation?