Uploading twins of model with "minMultiplicity" in a relationship is not possible through spreadsheet

[mwdhont]

Hi,

When trying to define a twin which has a model with a relationship with "minMultiplicity": 0, the creation fails. Example model part of https://github.com/Azure/opendigitaltwins-building/tree/21b1c19622e62e5b1f5e0e03744fa08a71da0764/Ontology:

{
  "@id": "dtmi:digitaltwins:rec_3_3:business:TenantUnit;1",
  "@type": "Interface",
  "contents": [
    {
      "@type": "Relationship",
      "description": {
        "en": "Member entities of a collection; e.g., a Campus includes some Space, an Apartment includes some Room, etc. Inverse of: includedIn"
      },
      "displayName": {
        "en": "includes"
      },
      "minMultiplicity": 0,
      "name": "includes",
      "target": "dtmi:digitaltwins:rec_3_3:core:Space;1"
    },
    {
      "@type": "Component",
      "displayName": {
        "en": "address"
      },
      "name": "address",
      "schema": "dtmi:digitaltwins:rec_3_3:addressing:Address;1"
    }
  ],
  "description": {
    "en": "A tenant unit is an administrative grouping of spaces (buildings, building components, real estates, etc.) that are used for some purpose by a real estate holder or tenant."
  },
  "displayNam
[test.xlsx](https://github.com/Azure-Samples/digital-twins-explorer/files/8821579/test.xlsx)
e": {
    "en": "Tenant unit"
  },
  "extends": "dtmi:digitaltwins:rec_3_3:core:SpaceCollection;1",
  "@context": "dtmi:dtdl:context;2"
}

[mwdhont]

test.xlsx