Fix for y=sin(x) in 3D

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23072 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Major fix for dynamic update in CAS (no backport)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23073 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e