Merge branch 'stable-3.7' into stable-3.8

* stable-3.7:
  Fix ApplyObjectActionIT flakiness due to the wrong ref used
  Force async fetch as a fallback for sync replication
  Index change asynchronously upon refs replicated event
  Address follow-up comments to Change 396868
  Introduce wait for replication events to reduce flaky tests
  Fail apply-object on change /meta when missing patch-set

Change-Id: I20213dd7e25948731a26af80e3a7627ab93d9b92
tree: e08d4eca70fa8a596822a6240c7e8bd427b0f404
  1. example-setup/
  2. src/
  3. .gitignore
  4. BUILD
  5. Jenkinsfile
  6. LICENSE