#4702 fixed

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37443 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fixed a bug with outdated image size

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37444 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e