OCL operator "excluding" not being considered in the plan simulation

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What steps will reproduce the problem?
1. OCL expression with "obj.association->excluding(x)" not being considered 
in the plan simulation
2. When simulating the association is not deleted.

What is the expected output? What do you see instead?
The association must be deleted automatically in the simulation (Move 
maker). Even though the simulation is wrong concerning the "excluding",this 
does not interferes in the plan validity. This is just a potential bug in 
the tool. 

What version of the product are you using? On what operating system?
Version: 3.0.10
Operating system: all

Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 5 Feb 2010 at 9:09