Hey Bill,
When did you begin rooting these cuttings?
To answer your questions:
1. Don't pinch the leaves. Budding fruit is an issue but leaves are good. (The appearance of baby fruit isn't a problem but if your fruit growth outpaces your roots and leaves, slice all budding fruit with a razor blade and wait for the fruit to wither and drop. In general, try not to pull on any part of the cutting. Moving it too much could damage the fragile roots. Again, I wouldn't even really pay too much attention to the baby fruit until it started actually growing larger. Most cuttings will just abort the fruit on their own.)
1 a. Yes. Add a bit more ventilation by widening the lid opening. Check regularly for moisture in the form of condensation. Water with the mist setting on a spritz bottle every few days, trying to avoid the leaves if possible. It's no big deal if the leaves get wet but the medium and the roots are the focuses here.
2. This one's hard to advise without photos. Either way, your cutting will probably not become root-bound by the time leaves appear, unless your rooting container is very, very small and you let it go too long.