Why Replace Items fails with multiple indeces and one negative?

[netsonicyxf]

The list [0,-1] doesn’t work in “Replace items” , while it works in “List item”

1.gh (21.9 KB)

[martinsiegrist]

Replacing works with a single negative index but fails for more than one index if one of them is negative.

replace_items_problem.gh (15.4 KB)