Add case for API_OPERATION_REPLACE within plugins ValidateChange method

Description

Related Issue

Motivation and Context

How Has This Been Tested?

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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.

plugins/sdk/deviceModel.go

@@ -241,13 +241,21 @@ func (d *DeviceModel) ValidateChange(operation mnepb.ApiOperation, path *gpb.Pat
 	d.mu.RUnlock()
 
 	switch operation {
-	case mnepb.ApiOperation_API_OPERATION_UPDATE, mnepb.ApiOperation_API_OPERATION_REPLACE:
+	case mnepb.ApiOperation_API_OPERATION_DELETE:
+		if err := ytypes.DeleteNode(d.schema.RootSchema(), modelCopy, path); err != nil {
+			return nil, err
+		}
+	case mnepb.ApiOperation_API_OPERATION_REPLACE:
+		if err := ytypes.DeleteNode(d.schema.RootSchema(), modelCopy, path); err != nil {
+			return nil, err
+		}
 		opts := []ytypes.SetNodeOpt{&ytypes.InitMissingElements{}, &ytypes.TolerateJSONInconsistencies{}, &ytypes.IgnoreExtraFields{}}
 		if err := ytypes.SetNode(d.schema.RootSchema(), modelCopy, path, value, opts...); err != nil {
 			return nil, err
 		}
-	case mnepb.ApiOperation_API_OPERATION_DELETE:
-		if err := ytypes.DeleteNode(d.schema.RootSchema(), modelCopy, path); err != nil {
+	case mnepb.ApiOperation_API_OPERATION_UPDATE:
+		opts := []ytypes.SetNodeOpt{&ytypes.InitMissingElements{}, &ytypes.TolerateJSONInconsistencies{}, &ytypes.IgnoreExtraFields{}}
+		if err := ytypes.SetNode(d.schema.RootSchema(), modelCopy, path, value, opts...); err != nil {
 			return nil, err
 		}
 	default: