pat/thinking-sphinx — pull request #385 by jdelStrother (2012-09-25 22:09:16+00:00)
Title: Fix model-centric searching when using skip_sti

BaseClass.search('foo', :skip_sti=>true, :classes=>[SubClass]) would fail due to Merger overwriting the :classes option.

Slightly different approach to the original one I proposed in https://github.com/pat/thinking-sphinx/issues/384, but this seems cleaner. WDYT?