NativeFromBinary should give error instead of giving empty slice in case of failure in decoding.

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Hi there,
Consider below struct: [struct1]

`type Personal struct {
Addresses []Address `json:"addresses"`
}`

`type Address struct {
StreetName string `json:"streetName" validate:"min=6,max=100,noLeadingTrailingSpace" pact:"example=123456,regex=^\\d{6}$"`
}`

Consider below avro codec for the same: [struct1]
`{
"name": "Personal",
"type": "record",
"fields": [
{
"name": "addresses",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "Address",
"fields": [{
"name": "streetName",
"type": "string"
}
]
}
}
}
]
}`

Now consider another struct & it's avro schema: [struct2]

`{
"name": "Personal",
"type": "record",
"fields": [
{
"name": "addresses",
"type": {
"type": "array",
"items": {
"type": "record",
"name": "Address",
"fields": [{
"name": "state",
"type": "string"
}
]
}
}
}
]
}`

`type Personal struct {
Addresses []Address `json:"addresses"`
}`

`type Address struct {
State string `json:"state" validate:"min=6,max=100,noLeadingTrailingSpace" pact:"example=123456,regex=^\\d{6}$"`
}`

Now I'm trying to encode my message using struct2 and decode in struct1 using NativeFromBinary() method i.e.
`val, newBuf, err := ac.NativeFromBinary(msg)`
Ideal assumption would be to get a decoding error, but instead of getting error I'm getting a Personal(struct1) containing empty Addresses slice into val & newBuf containing other remaining bytes(undecoded) and err is nil.
I think this is shouldn't be the case. Please see!

Start at the NativeFromBinary method and reproduce the case using the two incompatible Personal schemas described in the issue. Trace how decoding handles the unexpected field and remaining bytes. Done means the mismatch is reported as an error instead of returning a partial value with nil error.

Written by the indexing model from the issue text.