User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:21.0) Gecko/20100101 Firefox/21.0

when opening a local xterm (XFCE) starting midnight commander (mc) and after this resizing the xterm's window (increase width and height) and after this exit mc leads to e.g.:

thomas@thomas:~> set | grep LINES  
LINES=24

thomas@thomas:~> set | grep COLUMNS
COLUMNS=80

thomas@thomas:~> stty -a | grep speed
speed 38400 baud; rows 46; columns 134; line = 0;

resulting in garbled commandlines if prompt+command are actually longer than the value of $COLUMNS

=> xterm still believes to have it's former size

if I then resize the xterm again, everything is back to normal.

Reproducible: Always

Steps to Reproduce:
1. open xterm
2. launch mc
3. resize window (increase width and height)
4. exit mc
5. type a large command line
Actual Results:  
commandline is "warped" after $COLUMNS characters somehow onto the previous(!) line(s) or onto itself

Expected Results:  
commandline should wrap only at the right border of the xterm and only onto the following line(s)

thomas@thomas:~> cat /etc/issue
Welcome to openSUSE 12.3 "Dartmouth" - Kernel \r (\l).

thomas@thomas:~> rpm -qf /usr/bin/mc
mc-4.8.1.4-2.1.2.x86_64

homas@thomas:~> ldd /usr/bin/mc
        libslang.so.2 => /usr/lib64/libslang.so.2 (0x00007f45b6eaf000)

thomas@thomas:~> rpm -qf /usr/lib64/libslang.so.2
libslang2-2.2.4-4.1.1.x86_64