Interpolation in association conditions broken; broken backw

I believe it used to be possible to interpolate values into
associations’ conditions with single quotes, but it isn’t anymore.
has_many :widgets, :conditions => ‘brand_id = #{brand_id}’
Anyone else remember that? It seems to have been snuffed out in
changeset 3897 with the removal of interpolate_sql(@conditions)

Was the change (and the fact that it breaks backwards-compatibility)
known and announced or is it just an oversight? Once in awhile
there’s just no other way to do what this allows (short
of :finder_sql, which limits you significantly).

Thanks,

Jason G.,
Web Programmer
Eastern Mennonite University