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Override Semantic Definitions in a Composed Semantic Model
When you create a composed model, the composed model inherits all property definitions from the referenced model. If you change any property definition, the new definition is defined as an override. An overridden property definition is not connected to the referenced model. As such, your overridden property definitions are not changed when the referenced model is updated. Properties without overrides on the other hand, remain connected to the referenced model data source and receive updates from it, keeping it as the source of truth. If you want to return to the original values, you can always revert the override and resume automatic updates.

