6.2.1 doesn't map properties of specific implementation of interfaces

[swisszeni]

MCVE

See gist

Version: 6.2.1

Expected behavior

With 6.2.0, the Name property of BarDto gets Mapped to the same property in Bar

Actual behavior

With 6.2.1, the Name property doesn't get mapped and is null in Bar

Steps to reproduce

Use the gist as a console App with AutoMapper 6.2.0 and 6.2.1. Don't forget to clean the solution between version change.

[lbargaoanu]

@jbogard I'm guessing #2403, if it works in 6.2.0, but not in 6.2.1.

[lbargaoanu]

As far as I can tell this used to work more or less by accident. No map matches. When matching <IBarDto, IBar>, only base types are considered, so <BarDto, IBar> won't fit. So there was a fallback to match runtime types and then <BarDto, IBar> fits the bill. But now, with dynamic maps, a default map is created and that doesn't help. So I don't know about a fix. But you can set CreateMissingTypeMaps to false or MapAtRuntime for BarObject to get the old behavior.

[lock]

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