Adding Owner to a Solution (comments disappear)

Adding Owner to a Solution (comments disappear)

When entering a solution, the comments are disappearing. I've tried both just a Save and a Save and Approve. In either case, whatever is typed in the comments is gone when I edit the solution again.
They show in the history, shouldn't they stay in the comments section as well?
if not, can I add a small notes section or a field? I'm trying to assign the solution to an owner/group.

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