I notice if I create a table and select the columns of a row (the header
row is simplest) then right click > More > Multicolumn, LyX shows a
single cell spanning the table, with vertical rules at either end, as
one would expect. However, the right rule is not present in the pdf. For
a 3-column table, the View Source window shows
\multicolumn{3}{|c}{}\tabularnewline
whereas it should be
\multicolumn{3}{|c|}{}\tabularnewline
This is present in both 2.1.0beta2 and 2.0.6 on Windows and is a problem
only when *all* cells in the row are selected and converted to a single
multicolumn cell.
Andrew
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