Error in redirects for owl:versionIRIs

[DavidFichtmueller]

In each version the element owl:versionIRI within owl:Ontology contains a link to the owl file of that version. The links are structured like this: http://purl.obolibrary.org/obo/envo/releases/2017-05-10/envo.owl (version from the current pre-release). When trying to call the URL, there is a forward to https://raw.githubusercontent.com , e.g. https://raw.githubusercontent.com/EnvironmentOntology/envo/master/v2017-05-10/envo.owl for the link above. However this link returns a 404. This seems to be generic redirect, as it also works for dates where no release happened. The problem is the segment "/master". Removing it, returns the desired file. So the redirect needs to be adjusted to fix all of the broken versionIRI links from all releases.

I am not sure if this is the correct place to post this issue, but it seemed like the best way. Please correct me, if I am mistaken in this regard.

[pbuttigieg]

Many thanks for reporting @DavidFichtmueller! @cmungall is this something that the central OBO PURL handling team should be aware of?

[cmungall]

Thanks for reporting!