12c: DB 12.1.0.2 patch 12 known issues

Did you know that the latest patch for 12.1.0.2 has known issues already?  While article "Oracle Quarterly Database Patch 12.1.0.2.12 Known Issues" found on My Oracle Support by document ID 2052715.1 has a very small issue, it makes me curious going forward about how we find these known issues bug reports in the future for other DB patches as well!