[INTERNAL] sap.ui.base.ManagedObject: adjust return type of getOwnModels
[INTERNAL] sap.ui.base.ManagedObject: adjust return type of getOwnModels

Change-Id: I0c8da3bda5079e92b078600878fa6f26ea73a750

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5