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Description of problem:
gnome-terminal with tcsh as user default shell shifts the shell prompt while resizing the window.

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux 7.5
gnome-terminal-3.22.1-2.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Add below to '/etc/profile.d/csh.local' or '~/.cshrc'

# tcsh prompt definition:
if ( $?tcsh ) then
   if ( $?TERM ) then
      if ( "`env | grep -i term | grep -i xterm`" == "" ) then
         set prompt = "\n%m - %n - %/ - $shell\n%h%#: "
      else
         set prompt = "\n%B%m - %n - %/ - $shell\n%h%#:%b "
      endif
   endif
endif

Actual results:
Resizing the gnome-terminal window size, the tcsh shell prompt gets shifted.

Expected results:
The prompt should not get shifted.

Additional info:

xterm and konsole don't show this behavior. The prompt of the bash and ksh are not affected. 

We had tried below definitions.

bash prompt definition:
if [[ $SHELL == '/bin/bash' ]]; then
   if [ ! -z ${TERM+x} ]; then
      PS1='\n\h - \u - \w - $SHELL\n\!\$: '
   fi
fi

ksh prompt definition:
if [[ $SHELL == '/bin/ksh' ]]; then
   if [ ! -z ${TERM+x} ]; then
      if [[ $USER == 'root' ]]; then
         PS1=$'\n`hostname -s` - `logname` - $PWD - $SHELL\n#: '
      else
         PS1=$'\n`hostname -s` - `logname` - $PWD - $SHELL\n$: '
      fi
   fi
fi

The issue appears only with gnome-terminal with tcsh shell.

I tried it out with both gnome-terminal and xterm. I believe it's happening because newer versions of gnome-terminal and vte can rewrap the text if the width of the terminal changes. On the other hand, xterm will just cut off the extra columns of the terminal shrinks too much.

Does it help if you toggle this off using:
Profile Preferences -> General -> Rewrap on resize ?

(In reply to Debarshi Ray from comment #3)

> Does it help if you toggle this off using:
> Profile Preferences -> General -> Rewrap on resize ?

Thanks. This works.

Let me confirm with our customer once. I'll post their feedback here.