Another final fix to last changes

* src/xdisp.c (get_small_narrowing_begv): Refine the value of 'bol_pos'.

diff --git a/src/xdisp.c b/src/xdisp.c
index 940b8dc820ea3ecb47094dbeb6263d08a777f9a9..30a32896aba4f796b7001d40a07e08e03852d023 100644 (file)
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -3644,7 +3644,7 @@ ptrdiff_t
 get_small_narrowing_begv (struct window *w, ptrdiff_t pos)
 {
   int len = get_narrowed_width (w);
-  ptrdiff_t bol_pos = get_nearby_bol_pos (pos);
+  ptrdiff_t bol_pos = max (get_nearby_bol_pos (pos), BEGV);
   return max (bol_pos + ((pos - bol_pos) / len - 1) * len, BEGV);
 }