get_collection(True) through memcached client fails when default collection is deleted

Create a Scope

curl -u Administrator:password -i -X POST http://10.112.176.101:8091//pools/default/buckets/default/collections -d name=Scope0

Create a collection

curl -u Administrator:password -i -X POST http://10.112.176.101:8091//pools/default/buckets/default/collections/Scope0 -d name=Collections0

Delete default collection

curl -u Administrator:password -i -X DELETE http://10.112.176.101:8091//pools/default/buckets/default/collections/_default/_default

Create a memcached client and do get_collection(True), update_collection_map fails with "KeyError" when default collection is deleted

Execute the attached script

python cbsetcollections.py -u Administrator -p password -n 10.112.176.101:11210 -b default

collections enabled

the response is {}

Traceback (most recent call last):

  File "cbsetcollections.py", line 61, in <module>

    sys.exit(main(sys.argv[1:]))

  File "cbsetcollections.py", line 48, in main

    rv=conn.get_collections(True)

  File "/Users/anithakuberan/Documents/testlib/collections/lib/mc_bin_client.py", line 614, in get_collections

    self._update_collection_map(rv[2])

  File "/Users/anithakuberan/Documents/testlib/collections/lib/mc_bin_client.py", line 665, in _update_collection_map

    for collection in scope['collections']:

KeyError: 'collections'

Got mc_bin_client.py file from https://github.com/couchbase/kv_engine/blob/master/engines/ep/management/mc_bin_client.py