SCFG in curses mode corrupts lists of items when using copy/paste

Using Ctrl-C (copy) and then Ctrl-V (paste) corrupts lists of items (e.g. removing one) and the current selection/item-index jumps (e.g. from 0 to 33).

This issue does not happen in Win32/GDI or in *nix graphics modes.

I tested some old Linux-x64 builds, going back to April-2023, and it appears this is not a new issue.