Changed debugging for Sequence

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25309 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3252: some more progress not working

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25310 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e