when an Entity does not incorporate @context then it shall be assigned the default @context about context.orion-ld

[jmcanterafonseca]

I create an Entity as follows:

POST /ngsi-ld/v1/entities/
{
"id": "urn:ngsi-ld:Vehicle:V233",
"type": "Vehicle"
}

then GET

/ngsi-ld/v1/entities/urn:ngsi-ld:Vehicle:V233

results in

{
    "id": "urn:ngsi-ld:Vehicle:V233",
    "type": "Vehicle",
    "@context": "https://forge.etsi.org/gitlab/NGSI-LD/NGSI-LD/raw/master/coreContext/ngsi-ld-core-context.json"
}

[jmcanterafonseca]

now the default @context is assigned but issue #23 still remains