We must assign the _size when setting the array like this.
We must assign the _size when setting the array like this.

Also: added duplicate-removing code to preserve Set-ness.
Suddenly this is all looking like a "code-weirding" optimization.


git-svn-id: 64ebf368729f38804935acb7146e017e0f909c6b@2557 6335cc39-0255-0410-8fd6-9bcaacd3b74c

samskivert/samskivert,samskivert/samskivert