While investigating TEIIDDES-168, I tried to add a second Salesforce model to a VDB. I had already added "sf.xmi" which auto-added the XMLSOAPConnectorExtensions.xmi model. But adding "stock.xmi", which depends on a DIFFERENT XMLSOAPConnectorExtensions.xmi file, it added "stock.xmi" thinking it already had the right XMLSOAPConnectorExtensions.xmi file.

So, there is a bug here where VDB Editor should have detected the actual dependent XMLSOAPConnectorExtensions.xmi file and NOT allowed adding stock.xmi