When using copy in List drop targets, inside same list, index is wrong

When using copy in List drop targets, inside same list, index is wrong

When copying an object and dropping it to the right of another object in the same list the object is going to the left of the target object rather than the right... so something is a little off on the index number. Bit of a mind twister - will solve when I have more mind.

Fixed this and patched ZIM 019 and NPM