am d731c902: am f0380a26: am 343f581d: Merge "fix typo and clarify class references in database lesson bug: 9372560" into jb-mr1.1-ub-dev

* commit 'd731c902408b0a86deb8fce04b8391bec756f498':
  fix typo and clarify class references in database lesson bug: 9372560