We got strong beliefs that all Ukrainian defenders of Zmiiniy Island may be alive... The SBGSU and the Armed Forces, like the whole of Ukraine, have received hope that all of Zmiiny's defenders are alive.
https://www.facebook.com/100066866381279/posts/2850135637375...
But you said:
> ... turns out they surrendered...
So, in essence, you're doing the same thing you were trying to caution people about doing. People may, in fact, be spreading a story that's false, but you're also spreading a false story by saying "turns out they surrendered" when your own citation suggests they're still trying to confirm their surrender.
We all need to be diligent about confirming word-of-mouth stories and allowing time for their accuracy to be verified.