[LyX/master] Fix border when inserting column (#10538, #9306)

[Scott Kostyshak]

commit b1ddae0514a4b4daf4e6d248e2ce5171e4144233
Author: Scott Kostyshak <skost...@lyx.org>
Date:   Sun Jun 4 15:06:18 2017 -0400

    Fix border when inserting column (#10538, #9306)
    
    When inserting a column in tabular, the border of the new column
    should be copied from the border of the (previously) right-most
    column.
    
    Also remove a redundant line. The line
    
        setRightLine(i, true);
    
    was only reached if rightLine(i) was true.
    
    Patch from Daniel Ramöller.
---
 src/insets/InsetTabular.cpp |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/insets/InsetTabular.cpp b/src/insets/InsetTabular.cpp
index 7a94ebf..a0a2490 100644
--- a/src/insets/InsetTabular.cpp
+++ b/src/insets/InsetTabular.cpp
@@ -878,8 +878,8 @@ void Tabular::insertColumn(col_type const col, bool copy)
                setBottomLine(i, bottomLine(j));
                setTopLine(i, topLine(j));
                setLeftLine(i, leftLine(j));
+               setRightLine(i, rightLine(j));
                if (rightLine(i) && rightLine(j)) {
-                       setRightLine(i, true);
                        setRightLine(j, false);
                }
                if (buffer().params().track_changes)