Fixed a `RuntimeError` which really was an assertion.
Fixed a `RuntimeError` which really was an assertion.


git-svn-id: 92c705c98a17f0f7623a131b3c42ed50fcde59b4@2276 1b98710c-d8ec-0310-ae81-f5f2bcd8cb94

FrancescAlted/PyTables,FrancescAlted/PyTables,gdementen/PyTables,jack-pappas/PyTables,rabernat/PyTables,joonro/PyTables,cpcloud/PyTables,andreabedini/PyTables,cpcloud/PyTables,rdhyee/PyTables,tp199911/PyTables,tp199911/PyTables,dotsdl/PyTables,joonro/PyTables,rabernat/PyTables,avalentino/PyTables,andreabedini/PyTables,jack-pappas/PyTables,tp199911/PyTables,jack-pappas/PyTables,mohamed-ali/PyTables,andreabedini/PyTables,rabernat/PyTables,rdhyee/PyTables,PyTables/PyTables,jack-pappas/PyTables,tp199911/PyTables,jack-pappas/PyTables,joonro/PyTables,cpcloud/PyTables,avalentino/PyTables,dotsdl/PyTables,mohamed-ali/PyTables,gdementen/PyTables,jennolsen84/PyTables,FrancescAlted/PyTables,gdementen/PyTables,avalentino/PyTables,dotsdl/PyTables,joonro/PyTables,PyTables/PyTables,jennolsen84/PyTables,dotsdl/PyTables,gdementen/PyTables,PyTables/PyTables,mohamed-ali/PyTables,rdhyee/PyTables,andreabedini/PyTables,cpcloud/PyTables,rdhyee/PyTables,jennolsen84/PyTables,jennolsen84/PyTables,mohamed-ali/PyTables,rabernat/PyTables