Fix description of Operation Trait object

[smoya]

The following sentence located in the description of the Operation Trait object is wrong:

This object MAY contain any property from the Operation Object, except the action, channel and traits ones.

Source: https://www.asyncapi.com/docs/reference/specification/v3.0.0-next-major-spec.16#operationTraitObject

If you take a look at the fields an Operation Trait object has, messages field is not included.

You can confirm this is by design and expected by checking its corresponding JSON Schema definition at https://github.com/asyncapi/spec-json-schemas/blob/next-major-spec/definitions/3.0.0/operationTrait.json.

We should fix that sentence.

Originally posted by @smoya in #991 (comment)

[HassanBahati]

hi @smoya , i am interested in working on this issue.

is the requirement to add messages to the operationTrait.json

something like;

    "messages": {
      "description": "A short summary of what the messages for this operation.",
      "$ref": "http://asyncapi.com/definitions/3.0.0/operation.json#/properties/messages"
    },

[smoya]

hi @smoya , i am interested in working on this issue.

is the requirement to add messages to the operationTrait.json

something like;

    "messages": {
      "description": "A short summary of what the messages for this operation.",
      "$ref": "http://asyncapi.com/definitions/3.0.0/operation.json#/properties/messages"
    },

No. We just should include the field messages in the list of exclusions mentioned in the specification. Something like:

This object MAY contain any property from the Operation Object, except the action, channel, messages, and traits ones.

[HassanBahati]

oh okay..thank you @smoya for the clarity....i do see an open pr #1001 by @akkshitgupta ...please do have a look at it

[sami-mahmodi]

Hi @smoya I am interested working on this issue. I think we just missing a "messages" word in Operationtrait.json file in descriptioon field.

[smoya]

Hi @smoya I am interested working on this issue. I think we just missing a "messages" word in Operationtrait.json file in descriptioon field.

There is already a PR #1001