fixed update bug in FunctionInspector (#1685)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32192 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4127: Make sure the space after , is not selected in autocomplete

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32193 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e