Sam Minnee b2460de140 ENHANCEMENT: Removed circular references from extensions to improve garbage collection.
API CHANGE: The result of any extension returned by Object::extInstance() should have setOwner() called on it before calling a method, and clearOwner() after.

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@78414 467b73ca-7a2a-4603-9d3b-597d59a354a9
2009-06-04 06:48:44 +00:00
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