[LyX/master] Fix selection drawing after mouse-double/triple in mathed

[Richard Heck]

commit 33e10ff2138ae95ae42d922a51e93b9ba9c7bca6
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Fri Mar 21 10:20:12 2014 +0100

    Fix selection drawing after mouse-double/triple in mathed
    
    Fixes: #8829

diff --git a/src/mathed/InsetMathNest.cpp b/src/mathed/InsetMathNest.cpp
index ab88cf9..479a682 100644
--- a/src/mathed/InsetMathNest.cpp
+++ b/src/mathed/InsetMathNest.cpp
@@ -736,6 +736,7 @@ void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & 
cmd)
                cur.setSelection(true);
                cur.idx() = cur.lastidx();
                cur.pos() = cur.lastpos();
+               cur.bv().cursor() = cur;
                break;
 
        case LFUN_PARAGRAPH_UP: