We want copying settings to be the default behavior. This commit
deprecates not copying settings, and disallows explicitly not copying
settings. This gives users a transition path to the future default
behavior.

…r-you

* origin/master:
  Update forcemerge.asciidoc (elastic#30113)
  Added zentity to the list of API extension plugins (elastic#29143)
  Fix the search request default operation behavior doc (elastic#29302) (elastic#29405)
  Watcher: Mark watcher as started only after loading watches (elastic#30403)
  Pass the task to broadcast actions (elastic#29672)
  Disable REST default settings testing until elastic#29229 is back-ported
  Correct wording in log message (elastic#30336)
  Do not fail snapshot when deleting a missing snapshotted file (elastic#30332)
  AwaitsFix testCreateShrinkIndexToN
  DOCS: Correct mapping tags in put-template api
  DOCS: Fix broken link in the put index template api
  Add put index template api to high level rest client (elastic#30400)
  Relax testAckedIndexing to allow document updating
  [Docs] Add snippets for POS stop tags default value
  Move respect accept header on no handler to 6.3.1

* master:
  Fix line length violation in cache tests
  Add stricter geohash parsing (elastic#30376)
  Add failing test for core cache deadlock
  [DOCS] convert forcemerge snippet

…or-you

* elastic/master: (22 commits)
  Docs: Test examples that recreate lang analyzers  (elastic#29535)
  BulkProcessor to retry based on status code (elastic#29329)
  Add GET Repository High Level REST API (elastic#30362)
  add a comment explaining the need for RetryOnReplicaException on missing mappings
  Add `coordinating_only` node selector (elastic#30313)
  Stop forking groovyc (elastic#30471)
  Avoid setting connection request timeout (elastic#30384)
  Use date format in `date_range` mapping before fallback to default (elastic#29310)
  Watcher: Increase HttpClient parallel sent requests (elastic#30130)
  Mute ML upgrade test (elastic#30458)
  Stop forking javac (elastic#30462)
  Client: Deprecate many argument performRequest (elastic#30315)
  Docs: Use task_id in examples of tasks (elastic#30436)
  Security: Rename IndexLifecycleManager to SecurityIndexManager (elastic#30442)
  [Docs] Fix typo in cardinality-aggregation.asciidoc (elastic#30434)
  Avoid NPE in `more_like_this` when field has zero tokens (elastic#30365)
  Build: Switch to building javadoc with html5 (elastic#30440)
  Add a quick tour of the project to CONTRIBUTING (elastic#30187)
  Reindex: Use request flavored methods (elastic#30317)
  Silence SplitIndexIT.testSplitIndexPrimaryTerm test failure. (elastic#30432)
  ...

* master: (41 commits)
  Bump Gradle heap to 2 GB (elastic#30535)
  SQL: Use request flavored methods in tests (elastic#30345)
  Suppress hdfsFixture if there are spaces in the path (elastic#30302)
  Delete temporary blobs before creating index file (elastic#30528)
  Watcher: Remove TriggerEngine.getJobCount() (elastic#30395)
  [ML] Fix wire BWC for JobUpdate (elastic#30512)
  Use simpler write-once semantics for FS repository (elastic#30435)
  Derive max composite buffers from max content len
  Use simpler write-once semantics for HDFS repository (elastic#30439)
  SQL: Improve correctness of SYS COLUMNS & TYPES (elastic#30418)
  Mute two tests in FlushIT with @AwaitsFix.
  Fix incorrect template name in test case
  Build: Remove legacy bwc files from xpack (elastic#30485)
  Mute UnicastZenPingTests#testSimplePings with @AwaitsFix.
  Security: cleanup code in file stores (elastic#30348)
  Security: fix TokenMetaData equals and hashcode (elastic#30347)
  Mute two tests from SmokeTestWatcherWithSecurityClientYamlTestSuiteIT.
  Mute SharedClusterSnapshotRestoreIT#testSnapshotSucceedsAfterSnapshotFailure with @AwaitsFix.
  SQL: Improve compatibility with MS query (elastic#30516)
  SQL: Fix parsing of dates with milliseconds (elastic#30419)
  ...