Call of overloaded 'add(JsonArraySubscript)' is ambiguous

Created by: mozgy

Lets say that

JsonObject& data = { "foo":1, "nested": [ { "bar":2 } { "bar":3 } ... ] };
JsonArray& newdata = json.createArray();
JsonArray& tmp = data["nested"];

please add that following works

newdata.add( tmp[0] );

after #120 (closed) fix it's possible to do that with

String strTmp; tmp[0].printTo( strTmp ); newdata.add( strTmp );

but it looks a bit overkill using String buffer copy for that

TIA,