Encapsulate Field: "Encapsulate references" option disabled

Hi there

For a few builds now, the "Encapsulate references" option in the
"Encapsulate Field" refactoring is disabled, and set to "All".

I really don't like RS to rewrite all my references to my fields within
the declaring class. Is this a bug (what's the point in two options if I
can't select them) or do I have to tweak this elsewhere?

Thanks,
Philipp