Warcraft logs counting pre-potted prolonged power in stats

I noticed when comparing 2 death knights that one had almost 3000 more strength even though everything else seemed equal. Through some further investigating, it seems that if you pop prolonged power before combat starts (and warcraft logs starts recording) the strength provided (2500) will be added to the characters strength when looking at your summary.

If this could be adjusted, such that if prolonged is active when combat starts it removes the extra 2500, that’d be super helpful for future comparisons!