While I absolutely do not doubt this happened to you, this is extremely rare. I've never seen that happen to anyone else before. I'm on multiple US churning forums/discords/etc with tens of thousands of users and never seen that reported before. I'd be confident in saying that in 99% of cases recon does not result in an additional HP.
I always call recon immediately after applying and get approved with a short 5 min call, most of which is verifying my ID. Done this a dozen+ times now & never had a second HP.