case 'u': edit_undo(item, RESTORE_ITEM); break;
case 12 : clearok(stdscr, 1); break; /* ^L (refresh screen) */
default: return edit_field(tab, c, item);
case 'u': edit_undo(item, RESTORE_ITEM); break;
case 12 : clearok(stdscr, 1); break; /* ^L (refresh screen) */
default: return edit_field(tab, c, item);