Importing a restman/gmu bundle you may see a fault like,
Column 'POLICY_GOID' cannot accept a NULL value.
Version: 11.x
The cause of this can be due to having a encapsulated assertion. And not importing the backing policies. Setting all policies in the bundle to NeworUpdate should resolve this. The indication of the Null makes it seem like bad or invalid data relating to the backing policy definition of the encapsulated_assertion but it just seems to be that the foreign key of the policy doesn't exist or is not known by the bundle fragment.