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Multiple databases in one project - Entity framework (self tracking entities)

In my project, I want to have access to 2 different databases. I created two .edmx files in the same project, added the self tracking entities T4 thingie, and kaboom :) Does not work anymore.

I get a looooooot of ambiguity errors (ObjectChangeTracker and such)

What would be the preferred solution here? I can delete the duplicate content in the generated files but when modifying the .edmx file it just regenerates of course... Any thoughts?

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