We came across this coin while counting change - took it to a shop…

We came across this coin while counting change - took it to a shop around here 2 believe it's real one says it's fake and to get rid of it because of how tricky it looks... It's the same weight all that good stuff. But says there's a discrepancy in the moon- but back then how could it be exactly the same as the original? So we're stumped... If it is truly fake we'll toss it in a lake lol