I'm in the progress of updating from Drools 5.1 to 5.2 in the hope of solving 
problems we are having with intermittent mysteriously missing activations.

I've found a regression with the compiler which I don't know whether anybody 
else has noticed before.

In our application we've got two Content classes in different packages, and 
unfortunately one of our rule files has to reason over both of them.
In drools 5.1 this was fine, we imported one of them and then used the fully 
qualified name for the other.

I'm just upgrading to 5.2.0-Final and this no longer works. When resolving the 
unqualified class name drools/mvel(?) was choosing the package that we hadn't 
imported!
This obviously then gave us loads of misleading error messages about not being 
able to find fields.

Fully quallifiying all references to both classes fixed the issue but something 
obviously isn't behaving properly.

Thomas

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