bug report: divine power spell does not improve base attack

[Akai]

The spell states that it improves base attack to that of a fighter of the same level. I cast it, curious to see if Soleis' attack improved by 3 (as if his cleric levels were fighter levels) or 6 (as if all his levels were fighter levels.) Neither: His attack improved exactly as much as could be accounted for by the added strength.

[Ronan]

I'll test this with my straight leveled cleric, but the difficulty may be in multiclassing. I haven't cast it in a while, but in the past, it has worked as intended.