ListAppend, MapAdd, QueuePush create short TTL documents

Summary: Using the data structure helper methods and setting the "create" parameter to true DOES create the document, but it has a short expiration time. This was identified with a conversation in this forum post: https://forums.couchbase.com/t/bucket-listsize-error/24440/5

Repro:

1. In code, connect to cluster, open a bucket.
2. In code, call bucket.ListAppend("mylist", new {foo="bar"}, createList: true)
3. Set a breakpoint or a Thread.Sleep right after that.
4. Observe the document in the bucket immediately after execution.
5. Look at the metadata.

Expected:

No expiration (there is an overload where you can specify expiration, but it's not being used in step 2 above)

Actual:

Expiration (see screenshot)

Notes:

I've also attached a short console example.