[dev] [st] Bugs in scrollback buffer patch

[Alex Pilon]

I noticed the following while using the scrollback buffer patch.

* You can scroll past the top line in the buffer. Fixed with the
  attached diff.
* The selection doesn't reappear when going back on screen after
  scrolling off. Working on this now.
* MPV's status output is still drawn despite scrolling off.

Has anybody encountered the last two, and already worked on them?

Regards,

Alex Pilon

--- a/st.c
+++ b/st.c
@@ -1477,6 +1477,8 @@ kscrollup(const Arg* a) {

        if(term.scr <= histsize - n) {
                term.scr += n;
+               if (term.scr > term.histi)
+                       term.scr = term.histi;
                selscroll(0, n);
                tfulldirt();
        }

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