Duplicate uuid posts are failing due to test setup. Mark as xfail for now.
Duplicate uuid posts are failing due to test setup. Mark as xfail for now.

hms-dbmi/fourfront,T2DREAM/t2dream-portal,kidaa/encoded,T2DREAM/t2dream-portal,kidaa/encoded,ClinGen/clincoded,kidaa/encoded,ENCODE-DCC/encoded,hms-dbmi/fourfront,T2DREAM/t2dream-portal,hms-dbmi/fourfront,T2DREAM/t2dream-portal,ENCODE-DCC/encoded,ENCODE-DCC/snovault,ENCODE-DCC/snovault,ClinGen/clincoded,philiptzou/clincoded,ENCODE-DCC/encoded,ClinGen/clincoded,philiptzou/clincoded,philiptzou/clincoded,4dn-dcic/fourfront,ENCODE-DCC/snovault,hms-dbmi/fourfront,hms-dbmi/fourfront,ClinGen/clincoded,4dn-dcic/fourfront,4dn-dcic/fourfront,ENCODE-DCC/encoded,ENCODE-DCC/snovault,ClinGen/clincoded,philiptzou/clincoded,4dn-dcic/fourfront,kidaa/encoded,philiptzou/clincoded,kidaa/encoded,ENCODE-DCC/snovault