Mapping API does not automatically create the index

[rectalogic]

According to this bug, the mapping API was enhanced to automatically create the index. But this doesn't seem to happen with ES 1.4.4 or 1.5.2

Create Mapping API: Automatically create indices

curl -XPUT http://localhost:9200/twitter/tweet/_mapping -d '
{
    tweet : {
        properties : {
            message : {type : "string", store : "yes"}
        }
    }
}
'
{"error":"IndexMissingException[[twitter] missing]","status":404}

[jpountz (Adrien Grand)]

The expected behaviour today is that calling the put mapping API should not create the index.