QueryExpression with links returns one record per link

[seemann76]

When using QueryExpression with linked entities(with JoinOperator.LeftOuter) the resultset returned by XrmMockup is one row per linked entity, but when the plugin runs in CRM there the entitycollection returned has only one entity.

Expected behavior
Should return a collection with one entity, not one entity for each link.

Screenshots
Here an example of the FetchXML (translated from the QueryExpression). The fetchXML gives back one row.

In XrmMockup:

Environment

• D365 on-prem version 9.0.20.7
• Tool version: 1.3.0