I'm trying to update a workitem property to a resource that has a forward slash / in its identifier and the URI the same.  For example rdf:resource="http://path/to/it/z/OS" where the dc:identifier is "z/OS."

The rest update works fine with others in the enumeration list that don't have the forward slash.

I've tried a few variations of escape characters like backslash, url encoding (%2F), etc and I just receive "Illegal value" errors in the response.

When I inspect the interface the web client uses (IWorkItemRestService), it posts attributeValues just using an array of identifier strings, in this example ['z/OS'].

I'm not sure if it makes a difference but this property is actually a collection (oslc_cm:collref) in case that makes a difference in a work around. 

I think I either need to find out the proper way to escape it or an OLSC REST alternative that uses the identifier string.

(Oh, I also tried to set this on a workitem create and the other values work fine just not the one with the forward slash)

Thanks