Where can I find details on a Splunk bug beyond the description mentioned in release notes (example: SPL-92730)?
This particular one was taken from the 6.2.1 release notes:
http://docs.splunk.com/Documentation/Splunk/6.2.1/ReleaseNotes/6.2.1
The summary information in the release notes is the only information that Splunk publishes. If you need to discuss a defect in more detail, your best bet is to open a support case. The support engineers have access to the full defect records as well as the engineering team.