with_scope :joins not getting "table_name".*

When using with_scope with a :joins clause, the SQL generated is just

SELECT * FROM "table_name" INNER JOIN....

but a direct query (say, Table.all :joins => { :the => { :same
=> :stuff} } ) generates

SELECT "table".* FROM "table_name" INNER JOIN...

I have a patch right now, but I wanted to a) check if someone else had
seen this already and fixed it and I'm just slow, and b) wait to post
it until I had a test case first.

-=Eric

This appears to work for me in edge rails now, so it should behave as
you'd expect in 2.2.