Comment # 4 on bug 1143055 from Michael Schr�der

I'm not sure that bash will pick up the new $TERM with your export command.

try:

export TERM=screen
exec bash

Please do not set TERM to screen before starting screen, it'll just mess up
screen's key translation.

I suspect all this is because the 'screen-xterm-256color' entry is very broken.
Which package does it belong to? I.e. what's the output of:

rpm -qf /usr/share/terminfo/s/screen-xterm-256color