Disable attempt submission after a problem is closed
Disable attempt submission after a problem is closed

ul-fmf/projekt-tomo,ul-fmf/projekt-tomo,matijapretnar/projekt-tomo,ul-fmf/projekt-tomo,matijapretnar/projekt-tomo,ul-fmf/projekt-tomo,ul-fmf/projekt-tomo,matijapretnar/projekt-tomo,matijapretnar/projekt-tomo,ul-fmf/projekt-tomo,matijapretnar/projekt-tomo