Invalid yaml data portion parsed with no error

[kaer]

I do not know the user configuration content such as yaml parsing string {"aa":aaaa}{"tt":tt} then aa: aaaa will appear buttt has no result and no parsing error, can I force not to discard data

[Sıddık AÇIL]

{"aa":aaaa}
---
{"tt":tt}"

or

{
  "aa":aaaa
  "tt":tt
}

are valid yaml documents. {"aa":aaaa}{"tt":tt} has two root elements.

[kaer]

Thank you for your reply, but what I want to express is that the default value is given instead of error after parsing some incorrect data. I have been concerned about the same situation on this issue #938