KM query strange issue

Hi,

I've created a document with a predefined property 'Test' of type integer. The value of the property for the document is 15.

When I execute these queries, the document is found:

Test(value=15/comparator=LE)
Test(value=15/comparator=GE)

But when I execute this query, the document is NOT found?!?

Test(value=15/comparator=EQ)

This is violating against basic mathematics. Bug or am I misinterpreting something?

Thanks,

Jeroen

(SAP J2EE SP15)