QIDO-RS: wrong serialization of empty values

Hello

I figured out, that Orthanc QIDO-RS is not correctly serializing empty DICOM values into JSON.

Compare the following DIMSE dataset and JSON:

Hello,

Thanks for reporting the issue.

Please file it to our bug tracker so that we can solve it according to our quality processes:
https://bitbucket.org/sjodogne/orthanc/issues?status=new&status=open

Regards,
S├ębastien-

Filed bug: https://bitbucket.org/sjodogne/orthanc/issues/111/qido-rs-wrong-serialization-of-empty