updated for version 7.4a.013

Problem:    Setting/resetting 'lbr' in the main help file changes alignment
            after a Tab. (Dimitar Dimitrov)
Solution:   Also use the code for conceal mode where n_extra is computed for
            'lbr'.

src/screen.c

@@ -2997,6 +2997,14 @@ win_line(wp, lnum, startrow, endrow, nochange)
     int		vcol_off	= 0;	/* offset for concealed characters */
     int		did_wcol	= FALSE;
 # define VCOL_HLC (vcol - vcol_off)
+# define FIX_FOR_BOGUSCOLS \
+    { \
+	n_extra += vcol_off; \
+	vcol -= vcol_off; \
+	vcol_off = 0; \
+	col -= boguscols; \
+	boguscols = 0; \
+    }
 #else
 # define VCOL_HLC (vcol)
 #endif
@@ -4404,8 +4412,15 @@ win_line(wp, lnum, startrow, endrow, nochange)
 				1), (colnr_T)vcol, NULL) - 1;
 		    c_extra = ' ';
 		    if (vim_iswhite(c))
+		    {
+#ifdef FEAT_CONCEAL
+			if (c == TAB)
+			    /* See "Tab alignment" below. */
+			    FIX_FOR_BOGUSCOLS;
+#endif
 			c = ' ';
 		    }
+		}
 #endif
 
 		if (trailcol != MAXCOL && ptr > line + trailcol && c == ' ')
@@ -4453,11 +4468,7 @@ win_line(wp, lnum, startrow, endrow, nochange)
 		     * and boguscols accumulated so far in the line. Note that
 		     * the tab can be longer than 'tabstop' when there
 		     * are concealed characters. */
-		    n_extra += vcol_off;
-		    vcol -= vcol_off;
-		    vcol_off = 0;
-		    col -= boguscols;
-		    boguscols = 0;
+		    FIX_FOR_BOGUSCOLS;
 #endif
 #ifdef FEAT_MBYTE
 		    mb_utf8 = FALSE;	/* don't draw as UTF-8 */

src/testdir/test88.in

@@ -68,6 +68,9 @@ GGk
 GGk
 :normal $
 GGk
+:set lbr
+:normal $
+GGk
 :" Display result.
 :call append('$', 'end:')
 :call append('$', positions)

src/testdir/test88.ok

@@ -21,3 +21,4 @@ end:
 9:17
 9:25
 9:26
+9:26

src/version.c

@@ -727,6 +727,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    13,
 /**/
     12,
 /**/