Hello Kim,
Nothing was fixed on this because the behavior you observed is the one we wanted to implement when the feature was introduced. The reason was that when you review the same host in a different context (a different branch), your decision may be different than the previous review you made.
We received a couple of feedback that finally made us think that the choice was not a good one. Hotspots should behave as Issues and not be re-reviewed each time you scan a new branch.
I have no idea when we will implement this change.
Alex