fix for autotest failing

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28027 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Solve_ConstantsOnly_1 test fix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28028 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e