According to the logs attached to the bug, the application seems to
spin in endless LIST_FOR_EACH_ENTRY() in viewport_activate(), which
is the result of adding the same light structure to the list twice.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46807Signed-off-by: Paul Gofman <gofmanp@gmail.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>