NON required property having required properties

[koxon]

I have a NON required property object "client".
"client" however has required properties if present.

"client" properties should be checked ONLY if "client" is present.
The validator does the check no matter what. So the validation fails when "client" property is not present.
I tested the below data/schema with the Java validator and it works (see: http://json-schema-validator.herokuapp.com/), however with this PHP validator it fails.

Data

{
    "command": "StartJob",
    "data": {
        "input_type": "VIDEO",
        "outputs": 
        [
            {
                "output_type": "VIDEO"
            }
        ]
    }
}

Schema:

{
    "id": "http://test.com/input-schema/ValidateInputAsset#",
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Schema for activity task",
    "type": "object",
    "properties": {
        "client": {
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "externalId": {
                    "type": "string"
                },
                "role": {
                    "type": "string"
                }
            },
            "required": ["name", "role"],
            "additionalProperties": true
        },
        "command": {
            "type": "string"
        },
        "data" : {
            "type": "object"
       }
    },
    "required": ["command", "data"],
    "additionalProperties": true
}

[koxon]

Thanks for the fix!

[adamthehutt]

Is this fix going to be merged? I'm having this problem as well and it's a blocker for me. Thanks.

[justinrainbow]

The fix by @alexmmm has now been merged