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This is a patch for issue #2820 ("ActiveRecord 3.1 does not restore connection inheritance after establish_connection/remove_connection on a model").
It applies the solution described in that ticket. There is also a change in
connection_adapters/abstract/connection_specification.rb
to ensure that anil
pool can't leak out and causeNoMethodError
s.This pull request is against 3-1-stable. I've verified that the patch also works on master.