Supporting Fire Doesn't Update Weapon Sets Stats When Loading Into Zone

The Tactician ascendancy skill Supporting Fire doesn't properly update weapon sets. When you load into a zone with the wrong weapon set equipped swapping weapons won't update the damage correctly. Unequipping / reequipping weapons won't update the dps although the skill level will. It isn't just a tool tip error either. Damage is noticeably worse.

The temp fix is to load into the zone with the correct weapon set active.

Another report with the same issue:
https://www.pathofexile.com/forum/view-thread/3903272