tdf#148157: assertion after set "Between tick marks", click outside the chart

See bt here:
https://bugs.documentfoundation.org/attachment.cgi?id=179065

Change-Id: Id21f52d5cc33bbe99c27b7a8bdff056249c4d4fb
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132027
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
diff --git a/chart2/source/controller/main/StatusBarCommandDispatch.cxx b/chart2/source/controller/main/StatusBarCommandDispatch.cxx
index 1b867cb..26fcc45 100644
--- a/chart2/source/controller/main/StatusBarCommandDispatch.cxx
+++ b/chart2/source/controller/main/StatusBarCommandDispatch.cxx
@@ -66,7 +66,7 @@ void StatusBarCommandDispatch::fireStatusEvent(
    bool bFireContext(  bFireAll || rURL == ".uno:Context" );
    bool bFireModified( bFireAll || rURL == ".uno:ModifiedStatus" );

    if( bFireContext )
    if( bFireContext && m_xChartModel.is())
    {
        uno::Any aArg;
        aArg <<= ObjectNameProvider::getSelectedObjectText( m_aSelectedOID.getObjectCID(), m_xChartModel );