Sometime CREATE record is missing on receiving end

[darkdh]

1. Device A sends [Create F1, Create F2]
2. Device B receives [Create F1, Create F2]
3. Device A swap order of F1 and F2 under same folder, Device A sends [Update F1, Update F2]
   4.a Device B sometimes gets [Create F1, Create F2, Update F1, Update F2] , swapping succeed
   or
   4.b. Device B sometime only gets [Create F2, Update F1, Update F2] , swapping failed
   the receives here means GET_EXISTING_OBJECTS