_ttl: enabled: false has no effect

[brwe]

(Updated - my first examples were wrong)

In the following example the document will be deleted:

DELETE testidx
PUT testidx
PUT testidx/doc/_mapping
{
  "_ttl":{
    "enabled": "true"
  }
}

GET testidx/_mapping


PUT testidx/doc/_mapping
{
  "_ttl":{
    "enabled": "false"
  }
}
# _ttl is enabled anyway
GET testidx/_mapping
POST testidx/doc/1
{
  "text":"foo",
  "_ttl": "10ms"
}

#document will be deleted after a while
GET testidx/doc/1

[clintongormley]

@brwe Isn't this a duplicate of #777?

[brwe]

When I opened the issue it was not clear to me if one should be allowed to disable _ttl dynamically. After reading more code I think it should not be possible so yes, a duplicate of #777.