filetypes: redetectAll?

[donsizemore]

The upgrade instructions for 4.15 tell us to re-detect filetypes with the upgraded Jhove in place, but the API endpoint wants a file ID: http://guides.dataverse.org/en/latest/api/native-api.html#redetect-file-type

datafile.contenttype may not be NULL though I do see values of 'document/unknown' or 'text/unknown' I could select out.

Phil pointed me to https://github.com/IQSS/dataverse/blob/v4.17/src/main/java/propertyFiles/MimeTypeDetectionByFileExtension.properties but, even once we upgrade to 4.17, would it be beneficial for users to call redetectAll?

I could see this being of use as Dataverse makes more use of external tools.

p.s. You're allowed to tell me "no."