From: Jim Blandy <jimb@redhat.com>
Date: Wed, 30 Jun 1993 21:30:25 +0000 (+0000)
Subject: * xdisp.c (redisplay): If we're not already showing the region,
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* xdisp.c (redisplay): If we're not already showing the region,
	then don't disable the single-line optimizations just because the
	mark isn't where we last displayed it.
---

diff --git a/src/xdisp.c b/src/xdisp.c
index 33e58eb95f4..a716a25c3e5 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -435,8 +435,9 @@ redisplay ()
   if (((!NILP (Vtransient_mark_mode)
 	&& !NILP (XBUFFER (w->buffer)->mark_active))
        != !NILP (w->region_showing))
-      || !EQ (w->region_showing,
-	      Fmarker_position (XBUFFER (w->buffer)->mark)))
+      || (!NILP (w->region_showing)
+	  && !EQ (w->region_showing,
+		  Fmarker_position (XBUFFER (w->buffer)->mark))))
     this_line_bufpos = -1;
 
   tlbufpos = this_line_bufpos;