jagregory/fluent-nhibernate — pull request #156 by CV1 (2012-08-15 09:06:35+00:00)
Title: Update src/FluentNHibernate/MappingModel/Collections/LayeredColumns.cs

This class uses a Hashset intern. This is no problem with .Net, but mono (at least version 2.10.8 and sooner) has a incorrect Hashset implementation, so this class is not workin correct with the mono runtime. As long the hashset in mono is not fixed, I suggest to use a Dictionary here.

Using a Dictionary in this class instead