[Zope] Product loading during ZopeTestCase startup

[Encolpe Degoute]

Hello,
since few days i'am facing a strange problem with egg loading in tests.
One egg called project.site_policy is never loaded in the Products
namespace: the ZopeLite.hasPackage('project.site_policy') always returns
False.
Where is the code that loads eggs and products outside
SOFTWARE_HOME/lib/python/Products ?

regards
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