fix problem redefining FitPoly[{A, B, C, D, E, F, G, H, I}, 22] to FitPoly[{A, B, C, D, E, F, G, H, I}, 2]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34412 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e