selection of hashtag-link sometimes fails

[Orbiter]

hashtags shall be marked as link. That moslty works, but in some cases not:

This may be a problem with umlaute, but strangely it works with the word "Köln" but not with "München".

[sudheesh001]

The hastag regex has

var hashtagReg = /#([\wäöå]+)/gi;

so the ü character is missing and has to be converted into

var hashtagReg = /#([\wäöåü]+)/gi;

But this would just solve it for this case, what are the other possible cases in which this could fail ?

[mariobehling]

Please try out all kinds of special local characters and other languages as well. @sudheesh001 Please do some tests as well.