v1 updateContext APPEND doesn't update geo:point locations

[fgalan]

Create an entity with geo:point:

curl -vvvv localhost:1026/v2/entities -X POST -H 'Content-Type: application/json' -d @- <<EOF
{
  "id": "line1",
  "type": "bus",
  "loc": {
    "type": "geo:point",
    "value": "36.12,-4.33"
  }
}
EOF

All is ok at DB (pay attention to location field):

> db.entities.findOne()
{
	"_id" : {
		"id" : "line1",
		"type" : "bus",
		"servicePath" : "/"
	},
	"attrNames" : [
		"loc"
	],
	"attrs" : {
		"loc" : {
			"type" : "geo:point",
			"creDate" : 1482139824,
			"modDate" : 1482139824,
			"value" : "36.12,-4.33",
			"mdNames" : [ ]
		}
	},
	"creDate" : 1482139824,
	"modDate" : 1482139824,
	"location" : {
		"attrName" : "loc",
		"coords" : {
			"type" : "Point",
			"coordinates" : [
				-4.33,
				36.12
			]
		}
	}
}

Update entity using v1 updateContext APPEND:

(curl localhost:1026/v1/updateContext -s -S --header 'Content-Type: application/json' --header 'Accept: application/json' -d @- | python -mjson.tool) <<EOF
{
    "contextElements": [
        {
            "type": "bus",
            "isPattern": "false",
            "id": "line1",
            "attributes": [
                {
                    "name": "loc",
                    "type": "geo:point",
                    "value": "22.33,-11.12"
                }
            ]
        }
    ],
    "updateAction": "APPEND"
} 
EOF

In the DB we can see that the CB updates correctly the attribute value but not the location field:

> db.entities.findOne()
{
	"_id" : {
		"id" : "line1",
		"type" : "bus",
		"servicePath" : "/"
	},
	"attrNames" : [
		"loc"
	],
	"attrs" : {
		"loc" : {
			"value" : "22.33,-11.12",
			"type" : "geo:point",
			"mdNames" : [ ],
			"creDate" : 1482140980,
			"modDate" : 1482141000
		}
	},
	"creDate" : 1482140980,
	"modDate" : 1482141000,
	"location" : {
		"attrName" : "loc",
		"coords" : {
			"type" : "Point",
			"coordinates" : [
				-4.33,
				36.12
			]
		}
	}
}

CC: @gtorodelvalle , @frbattid

[fgalan]

Fixed by PR #2792