Error when checkout MMS model with document created in VE

[dsryzhov]

When documents\views are created in VE new version of project is created.
When trying to checkout this new project version to Capella
the following error occurs (there is no such problem when I checkout initial commit that does not contains VE documents)

com.thalesgroup.mde.openmbee.connector.mms.sirius.ui
Error
Tue Nov 03 09:46:54 MSK 2020
Unexpected exception while trying to import project 'PROJECT-7b851ff4-4512-4a0b-840a-9022cff764bc-CapellaMMSProject' from MMS 'https://mms.openmbee.org/alfresco/service' under organization '7b851ff4-4512-4a0b-840a-9022cff764bc'

java.lang.NullPointerException
at com.thalesgroup.mde.openmbee.connector.mms.sirius.EmfMmsModelElementDescriptorConverter.fromMMS(EmfMmsModelElementDescriptorConverter.java:83)
at com.thalesgroup.mde.openmbee.connector.mms.sirius.SiriusProjectConnector.fromMms(SiriusProjectConnector.java:218)
at com.thalesgroup.mde.openmbee.connector.mms.sirius.ui.ImportRunnable.executeImport(ImportRunnable.java:91)
at com.thalesgroup.mde.openmbee.connector.mms.sirius.ui.ImportRunnable.run(ImportRunnable.java:54)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)

Scenario to reproduce this error

1. Create Capella model
2. Export Capella project to MMS
3. Create project document with one view in VE
4. Remove original capella project from workspace
5. Checkout last project version from MMS