Bug 446854 - Makes sure that types are conformant before switching keys

Change-Id: I3a26eeb66065c5bbf7bd3f8d6b266012b6eccfc1
Signed-off-by: Philip Langer <planger@eclipsesource.com>
Merge "Bug 446854 - Makes sure that types are conformant before switching keys" into develop
Bug 413797 - Fix EMFStore Fuzzy Tests

More API changes in fuzzy.emf