Message.parse_obj(d) inconsistent with MessageDecoder.decode_obj(d)

[anschweitzer]

Problem events from drivers have a src object that isn't the scada, and when parsed in gridworks-debug-cli, these end up with Src from the Event, even though the received Header has the correct Src of the generating scada. Does the decoder do this?

For example:

d = {
    "Header": {"Src": "FOO", "MessageType": "."},
    "Payload": {"Src": "BAR",},
}

m = Message.parse_obj(d)
assert m.src() == "BAR"

d["Header"] = Header.parse_obj(d.get("Header", dict()))
m = Message.parse_obj(d)
assert m.src() == "BAR"

d["Src"] = "FOO"
m = Message.parse_obj(d)
assert m.src() == "FOO"

I believe all of these should have src of "FOO".

If they aren't consistent that should be documented.