Match user_mentioned url path to new_comment and user_replied_to (#3431)
Match user_mentioned url path to new_comment and user_replied_to (#3431)

* Match user_mentioned url path to new_comment and user_replied_to

* Extend polymorphic_url method

loomio/loomio,sicambria/loomio,loomio/loomio,piratas-ar/loomio,piratas-ar/loomio,sicambria/loomio,sicambria/loomio,loomio/loomio,piratas-ar/loomio,loomio/loomio,piratas-ar/loomio,sicambria/loomio