Description of Problem:
Scrollback region is not saved when vt100 scroll region is in effect
in RH8.0, but it was saved in RH7.3.

Version-Release number of selected component (if applicable):
gnome-terminal-2.0.1-5

How Reproducible:
100%

Steps to Reproduce:
1. Run an application which sets a scroll region touching topmost line,
   such as sirc/ssfe.
2. Hit <Shift><PgUp> to examine the scrollback area, observe that the
   scroll content was not saved.

Actual Results:

Saved scroll region is not updated.

Expected Results:

Saved scroll region updated as in RHL 7.3.

Additional Information:

Note that scroll saving under screen never worked, so don't try
to "fix" that.