Custom XML in Word and co-authoring

%3CLINGO-SUB%20id%3D%22lingo-sub-38871%22%20slang%3D%22en-US%22%3ECustom%20XML%20in%20Word%20and%20co-authoring%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-38871%22%20slang%3D%22en-US%22%3E%3CP%3ELooking%20for%20an%20answer%20if%20Custom%20XML%20is%20supported%20in%20co-authoring%20scenarios.%20I've%20a%20customer%20who%20uses%20Custom%20XML%20in%20a%20Word%20Add-in%20and%20they%20are%20seeing%20that%20their%20Custom%20XML%20gets%20duplicated%20in%20Word%20when%20they%20are%20using%20co-authoring.%20The%20Custom%20XML%20data%20is%20bound%20to%20content%20controls%20in%20the%20document.%3C%2FP%3E%3C%2FLINGO-BODY%3E
Highlighted
Microsoft

Looking for an answer if Custom XML is supported in co-authoring scenarios. I've a customer who uses Custom XML in a Word Add-in and they are seeing that their Custom XML gets duplicated in Word when they are using co-authoring. The Custom XML data is bound to content controls in the document.