commit 458cfc8e952f43dc35c77c4d7a472ad512d0377e
Author: sirlemonhead <sirlemonhead@outlook.com>
Date:   Wed Jul 7 21:28:19 2021 +0100

    SW: Wrap index to sintable with NORM_ANGLE() in PlayerOnLadder() to prevent overflow.

commit 6733535fe04428e32e0ee98e42cd16e5c6b9f7d6
Author: sirlemonhead <sirlemonhead@outlook.com>
Date:   Wed Jul 7 20:39:29 2021 +0100

    SW: Don't allow backspacing on an empty text input buffer

See https://voidpoint.io/terminx/eduke32 for more details.