Related to issue: https://github.com/elasticsearch/elasticsearch/issues/4300 Version number could appear as inconsistent

version_actual.sh

curl -XDELETE "http://localhost:9200/myindex";  echo
curl -XPUT "http://localhost:9200/myindex" -d'
{
    "settings": {
        "gc_deletes": "30s"
    }
}';  echo
curl -XPUT "http://localhost:9200/myindex/doc/1" -d'{ "foo" : "bar" }';  echo
curl -XDELETE "http://localhost:9200/myindex/doc/1?version=1";  echo
curl -XPUT "http://localhost:9200/myindex/doc/1?version=2" -d'{ "foo" : "bar" }';  echo
# {"ok":true,"_index":"myindex","_type":"doc","_id":"1","_version":3}

curl -XDELETE "http://localhost:9200/myindex";  echo
curl -XPUT "http://localhost:9200/myindex" -d'
{
    "settings": {
        "gc_deletes": "1ms"
    }
}';  echo
curl -XPUT "http://localhost:9200/myindex/doc/1" -d'{ "foo" : "bar" }';  echo
curl -XDELETE "http://localhost:9200/myindex/doc/1?version=1";  echo
sleep 1
curl -XPUT "http://localhost:9200/myindex/doc/1?version=2" -d'{ "foo" : "bar" }';  echo
# {"error":"VersionConflictEngineException[[myindex][2] [doc][1]: version conflict, current [-1], provided [2]]","status":409}