(display_line): For a tab continued to the next line,

set row's ends_in_middle_of_char_p.

src/ChangeLog

+2001-10-23  Gerd Moellmann  <gerd@gnu.org>
+
+	* xdisp.c (display_line): For a tab continued to the next line,
+	set row's ends_in_middle_of_char_p.
+
 2001-10-22  Gerd Moellmann  <gerd@gnu.org>
 
 	* xdisp.c (display_line): Fix computation of continuation lines

src/xdisp.c

@@ -12944,7 +12944,10 @@ display_line (it)
 
 		      /* A TAB takes us to the right edge of the window.  */
 		      if (it->c == '\t')
-			it->continuation_lines_width += it->last_visible_x;
+			{
+			  it->continuation_lines_width += it->last_visible_x;
+			  row->ends_in_middle_of_char_p = 1;
+			}
 		      else
 			it->continuation_lines_width += x;