patch 9.1.0397: Wrong display with 'smoothscroll' when changing quickfix list

Problem:  Wrong display with 'smoothscroll' when changing quickfix list.
Solution: Reset w_skipcol when replacing quickfix list (zeertzjq).

closes: #14730

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/move.c b/src/move.c
index 9bdd46f..6790192 100644
--- a/src/move.c
+++ b/src/move.c
@@ -319,6 +319,7 @@
 	    redraw_later(UPD_NOT_VALID);
 	curwin->w_topline = 1;
 	curwin->w_botline = 2;
+	curwin->w_skipcol = 0;
 	curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
 	curwin->w_scbind_pos = 1;
     }