Like for unmapped target properties (see [UnmappedTargetPropertiesInspection.java](https://github.com/mapstruct/mapstruct-idea/blob/main/src/main/java/org/mapstruct/intellij/inspection/UnmappedTargetPropertiesInspection.java) ) an inspection should be added for unmapped source properties.
Like for unmapped target properties (see UnmappedTargetPropertiesInspection.java ) an inspection should be added for unmapped source properties.