Fix: Set does not update the model within the database

see title

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

controller/api/initialise_test.go

@@ -122,11 +122,15 @@ func bootstrapUnitTest() {
 	})
 
 	sbi := &nucleus.OpenConfig{}
+	schema, err := sbi.Schema()
+	if err != nil {
+		log.Fatal(err)
+	}
 
 	mockNetworkElement := &mocks.NetworkElement{}
 	mockNetworkElement.On("SBI").Return(sbi)
 	mockNetworkElement.On("ID").Return(mneUUID)
-	mockNetworkElement.On("GetModel").Return(sbi.Schema().Root)
+	mockNetworkElement.On("GetModel").Return(schema.Root)
 	mockNetworkElement.On("Name").Return("openconfig")
 	mockNetworkElement.On("TransportAddress").Return("127.0.0.1:6030")
 	mockNetworkElement.On("GetMetadata").Return(conflict.Metadata{ResourceVersion: 0})