A mixin with a formal parameter will prevent an informal parameter of the same name from being bound on the component

<t:actionlink t:id="foo" title="Link Title" t:mixins="tapx/confirm" confirm.title="Oh really?"/>

this will not work as expected (I need to experiment to see which version of title is bound to the mixin's parameter), but because title is not a formal parameter, there's no way to bind it on ActionLink in the presence of a mixin that has a formal paramater with this name.

I suspect the solution will end up being actionlink.title="Link Title".