[Bug-readline] readline and the more command don't play well together

[Matt Fischer]

I am using GNU readline (ia64, 5.2-2 debian unstable).  My app uses popen to dump some text files to "more -d".  In some boundary cases, where the lines are just so, the "--more--" message is still on the screen when my prompt comes back (example at bottom).

I figured that I could use some of the reset functionality to reset readline and the terminal so that it would clear the extranneous --more-- from the screen and have a "clean" prompt.

I essentially tried every reset/clear related function that I saw in the documentation, and nothing helped.  Specifically I called:

rl_reset_line_state()
rl_reset_terminal("vt100")
rl_on_new_line()
rl_on_new_line_with_prompt()  --> this segfaulted....
rl_cleanup_after_signal() in combination with rl_reset_after_signal() --> this segfaulted too
and several others, in various combinations..

It seems that "more -d" is upsetting the terminal settings, but why wouldn't rl_reset_* clear this problem up?  

Here's what it looks like on my screen, my prompt is "here>".
here>e--[Press space to continue, 'q' to quit.]