When I logged in today from playing yesterday, I found myself in the Surrender action and I couldn't stop it.
Even in the game's Main Menu intro screen, my character appears stuck with its hands up!
I tried opening my inventory, interacting with items, doors etc. Pressing C to go prone or crouch did not solve the issue either.
When I restarted the DayZ client, and connecting to another server, I was still stuck in the Surrender action.
I don't know which key toggles Surrender but I tried pressing F1-F7 and nothing helped.
Video: https://www.youtube.com/watch?v=oU0Zl4ysFjo

Character profile/Steam ID: https://steamcommunity.com/id/Vitdom/