Pretty sure it's fake news. Merely a meme.
I still can't get a straight answer for why it's Communist. Sure there's a few commie-esque bits here and there, but they don't tend to get put centre stage. Christians don't think these bits of Christianity are important, and treat them accordingly.
It does have one commonality, though. Communism is about returning to the paleolithic. More precisely, to the garden of eden, where there was no shame or guilt, you just kind of frolicked around and it worked out. Likewise, Christianity is the same. In heaven nobody has any sinful impulses.
Though, even then. Christians think your sinful impulses will be removed. Communists (sort of) think your existing impulses are already not sinful. That any act you regret is caused by class warfare or false consciousness or something; making a mistake is impossible.
P.S. I've talked on twitter about how the garden thing is theologically wrong. Perhaps I should do so here as well.