bug#73022: 31.0.50; Crash in build_frame_matrix_from_leaf_window after C-x 2 and reducing terminal size

I tried changing the emacs_abort() in cmcheckmagic to mark the frame
garbaged instead:

--- a/src/cm.c
+++ b/src/cm.c
@@ -119,7 +119,10 @@ cmcheckmagic (struct tty_display_info *tty)
   if (curX (tty) == FrameCols (tty))
     {
       if (!MagicWrap (tty) || curY (tty) >= FrameRows (tty) - 1)
-       emacs_abort ();
+       {
+         SET_FRAME_GARBAGED (XFRAME (tty->top_frame));
+         return;
+       }
       if (tty->termscript)
        putc ('\r', tty->termscript);
       putc ('\r', tty->output);

With this patch on emacs-30, the recipe does not crash any more. The
display comes back correctly when the terminal becomes large enough
again. The same build crashes without the patch.

I am not sure if this is the correct fix. It only skips the abort and
leaves the redrawing to the next redisplay.