What happens if you let her sleep as long as she likes for both naps? Does she go to sleep at a ridiculously late hour if that happens? Or still to bed at 7?
Might it be worth trying to wake her a little earlier in the morning? I always found that waking from naps resulted in grumpy baby so I tried to avoid it whenever possible. If you don't catch the right part of the sleep cycle, same as adults, they're all foggy-headed and out of sorts; you could try after 45 minutes when she'd normally stir and see if that makes a difference, but if she'll still take 2 full naps even as a late waker without going to bed for the night too often, I'd leave it.
Also, if she's had a restless night with lots of wakings, I'd let her sleep a bit more during the day to catch up if she seems to need it.