No. nicwolff said the moral was about villagers and their skepticism. AlbertCory correctly said the moral is how lying damages the boy's reputation.

The moral to the listener is to not be like the boy. The moral is not, to be unlike the villagers.

No, because the lesson is that the boy shouldn't have lied. It's not "the village should have believed him again".

no it doesn't. See the other replies.