ForAllMembers condition breaks after upgrading to 3.1.0

[jameshulse]

We just upgraded from 3.0.0 to 3.1.0 and started getting an issue with mappings with the following definition:

.ForAllMembers(o => o.Condition(c => !c.IsSourceValueNull));

This was previously functioning correctly and would not attempt to map properties which did not have a source value. After the upgrade, it seems that Automapper, when faced with a destination member that has no matching source member, will attempt to map from the source type to the destination member. This then throws a mapping exception because there is no mapping definition for the source type to any of the destination property types. Previously, Automapper seemed to rightfully ignore members which did not have a matching source member.

We changed the condition line to:

.ForAllMembers(o => o.Condition(c => c.PropertyMap.SourceMember != null && !c.IsSourceValueNull));

And this fixed the issue. The other solution was to add Ignore() to every single destination property, but this was impractical.

[lock]

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