Solved German umlaut preservation in URLs in XenForo 2.3 is broken

[Steffen]

First of all, thank you for the german umlaut preservation in URLs in XenForo 2.3 explained here: https://xenforo.com/community/threa...haracters-such-as-o-and-u.221332/post-1681545

However, there seems to be a small but crucial bug which causes the special-casing to not be used. The code expects the locale separator to be and underscore (i.e. "de_DE") although actually it is a dash ("de-DE").

Diff:

--- a/src/XF/Util/Str.php
+++ b/src/XF/Util/Str.php
@@ -385,7...

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