Question regarding transitive types / subClassOf relations

[maxidl]

When inspecting the yagoTransitiveType.tsv from the download page I noticed something strange.
Doing a grep '<Albert_Einstein> yagoTransitiveType.tsv shows that he is associated with many different 'wikicat_People_from_X', which seems to be wrong.

Looking into the taxonomy, I find that a lot of the states in the US are linked with subClassOf relations, and thus producing this problem.
For example there is a relation
<id_KOlZj0JAgT_owS_MsK3cIIAsG> <wikicat_People_from_California> rdfs:subClassOf <wikicat_People_from_Minnesota>
resulting in all people from California also being people from Minnesota, which is a wrong assumption.

Maybe I am missing something or is this intended?
Is my interpretation of the subClassOf relation correct?

[maxidl]

Browsing YAGO2 for the category <wikicat_People_from_California> does not show a subClassOf relation to any other category except "people", which would be the behaviour I expected.

[maxidl]

I found that Yago version 2.5 does not have this problem.