Forbid extra fields in YMLs
Add an extra, missing field to the lookup.py model called max_matches that was accidentally dropped. set extra='forbid' for SecurityContentObject
This PR is on hold pending significant, structural changes to Detection YMLs with respect to Risk Based Alterting (RBA) content: https://github.com/splunk/contentctl/pull/263
Note that the groups and context fields were temporarily added to the detection_tags object and will require some discussion. We may also need to update the contentctl new command to make sure no erroneous fields are written, like risk_score.
This PR has been open for a long time and, as such, has been deprecated in favor of the following PR with similar changes: https://github.com/splunk/contentctl/pull/325
This PR is being closed out.