Tmux in Konsole = screen corruption in Debian Buster

I noticed another problem after a recent update to Debian Buster: using Tmux in Konsole leads to screen corruption. More specifically, cleaning the screen (e.g. via Ctrl+L) does not work, leaving the screen garbled. At first I thought that this might have something to do with my tmux or .bashrc, but removing their config and running both bash and tmux on default settings leads to same results. Also, I noticed that the problem is only present in Konsole - other terminal emulators (e.g. xterm, lxterminal) work fine. Anyone knows a workaround? Janek --- Politechnika Łódzka Lodz University of Technology Treść tej wiadomości zawiera informacje przeznaczone tylko dla adresata. Jeżeli nie jesteście Państwo jej adresatem, bądź otrzymaliście ją przez pomyłkę prosimy o powiadomienie o tym nadawcy oraz trwałe jej usunięcie. This email contains information intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient or if you have received this message in error, please notify the sender and delete it from your system.