late feedback on MKCOL ext response body, was: [VCARDDAV] vcarddav WGLC on draft-ietf-vcarddav-{carddav,mkcol}

Hi,

I was going through older mailing list discussions, and found an issue 
where I think we were close to consensus, but then didn't make that 
change...

In general, a server that successfully executes a MKCOL/ext request, 
doesn't need to return a detailed success response. However, the spec 
currently requires a response body with propstat elements for all 
successfully set properties.

I think we should make that OPTIONAL -- thus, for a 201 response, the 
server would be allowed to send an empty response.

BR, Julian