Exposure effect calculation doesn't account for Strip Away in some cases

If I use an effect to apply an exposure, then apply another larger exposure with Strip Away supporting it, the larger exposure is appropriately being used, but doesn't have the increased effect from Strip Away

My state:
- Solar orb with Fire Exposure support
- Incinerate with Strip Away
- Exposure effect on tree (like Overexposure)

- Solar orb alone: 35% exposure
- Incinerate alone, fully stacked: 102% exposure
-- Incinerate without Stripe away: 87% exposure

If I drop a solar orb first, then start channeling Incinerate, it only goes up to 87%

Same issue, but with infernal hound + exposure and incinerate + strip away. If I hit first with incinerate, it will go to 65%, if the hound exposure is on first, it will only go to 50%.