Properly implemented `empty_duplicate' to fix eweasel test#table013 where resizing the table did not preserve the caseless insensitivity of the table structure. 


git-svn-id: https://freeelks.svn.sourceforge.net/svnroot/freeelks/trunk@687 6d4a7a74-6026-0410-acef-abb7cea3cd6d
Made it compile after a merge conflict that deleted some new code.


git-svn-id: https://freeelks.svn.sourceforge.net/svnroot/freeelks/trunk@688 6d4a7a74-6026-0410-acef-abb7cea3cd6d