Store new version if only the content-type changed
Store new version if only the content-type changed

milimetric/restbase,wikimedia/restbase,wikimedia/restbase,eevans/restbase,Pchelolo/restbase,wikimedia/mediawiki-services-restbase,eevans/restbase,Pchelolo/restbase,wikimedia/mediawiki-services-restbase,cscott/restbase,milimetric/restbase,cscott/restbase,d00rman/restbase,gwicke/restbase,gwicke/restbase,d00rman/restbase