mono/MonoGame — pull request #3148 by demonixis (2014-11-02 12:19:24+00:00)
Title: Fix dispose rt open gl

This pull request add a fix to prevent the application to crash when a renderTarget is disposed. In some cases the GraphicsDevice object is null when the callback of `AddDisposeAction` is called. This fix has been necessary for a one of my games using the WindowsGL port.