rails/rails — pull request #5762 by keymone (2012-04-06 12:10:10+00:00)
Title: Fix scope leaking

don't know if rails 2.3 is still accepting such fixes but this one is pretty annoying for me and fix is really simple

problem is that Proc#bind is called every time scope has to change it's execution context and that happens often when one uses STI

Proc#bind was recently deprecated from rails/master and replaced with same solution i got for my problem here