Condition indicator MUST NOT be added to the line if the Sequence Flow is outgoing from a Gateway

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What steps will reproduce the problem?
1. Draw a BPMN diagram with a gateway (e.g. xor gateway) 
2. Connect a sequence flow to emerge from the gateway
3. change the sequence flow attribute ConditionType to 'Expression'

What is the expected output?
Nothing, the view of the sequence element should not change

What do you see instead?
A diamond marker apearing at the source of the sequence flow

Please provide any additional information below.
The behavior in generell is correct. But when the source of the sequence flow 
is a gateway the 
BPMN spec says: "However, a condition indicator MUST NOT be added to the line 
if the 
Sequence Flow is outgoing from a Gateway." (BPMN1.1 p265) -->  Special case so 
to say.

Original issue reported on code.google.com by alexande...@googlemail.com on 25 Aug 2008 at 2:43

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Original comment by NicoPete...@gmail.com on 29 Aug 2008 at 1:29

• Changed state: Accepted

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Original comment by sven.wag...@gmail.com on 29 Aug 2008 at 1:43

• Changed state: Fixed

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Original comment by NicoPete...@gmail.com on 29 Aug 2008 at 2:04

• Changed state: Verified