Our PMs do not want the comments automatically (and permanently) withheld from integration as described in the knowledge base. They call it a bug if their comments to engineering are not sent at time of integration send, and no action can force those comments to be sent later. They want to be able to send a body of comments to the engineering team at time of sending. Without any clear UI warning that comments cannot be 'sent' later, they had no reason to go read a support knowledge base to discover a disappointing feature of Aha.
At a minimum they would ask for a configuration choice that allows them to send important content from early refinements to engineering tooling.
When you first send an Aha! Roadmaps record to an integrated tool, Aha! Roadmaps does not send any existing comments. This is so that you can complete your strategic plans in Aha! Roadmaps before sending records to engineering.
Though you can edit comments in Aha! Roadmaps, edits to comments will not be sent to integrated tools.