tdf#119427: fix selectionChanged event

Regression from 0fb4ae8767fa5ff791cd42934b4215011a269eb0
Thank you Drew for the bibisection!

Change-Id: Id444172d534374d71765bd4aca71b012cc2352f1
Reviewed-on: https://gerrit.libreoffice.org/59526
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
(cherry picked from commit 36123b42c5d3084f94d068874a0bac2cc849a66e)
Reviewed-on: https://gerrit.libreoffice.org/59530
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/svtools/source/table/defaultinputhandler.cxx b/svtools/source/table/defaultinputhandler.cxx
index 945919b..7f01f84 100644
--- a/svtools/source/table/defaultinputhandler.cxx
+++ b/svtools/source/table/defaultinputhandler.cxx
@@ -89,6 +89,8 @@ namespace svt { namespace table
            bool handled = false;
            for (auto const& mouseFunction : i_impl.aMouseFunctions)
            {
                if (handled)
                    break;
                if (mouseFunction == i_impl.pActiveFunction)
                    // we already invoked this function
                    continue;