Merge branch 'stable-2.13' into stable-2.14

* stable-2.13:
  PropertyExtractor: Add null check for event.submitter

Change-Id: I3a443ba01fac120258d3599b5b73e4257a503028
tree: 77d1f3e218ee427ebfd98f3ac56213a67fe4c514
  1. .settings/
  2. src/
  3. tools/
  4. .gitignore
  5. bazlets.bzl
  6. BUILD
  7. LICENSE
  8. WORKSPACE