[Bug 2493] Multi-select listview: Shift-arrow up only selects top two items

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=2493

------- Additional Comments From [e-mail]  2007-02-05 04:22 -------
Created an attachment (id=6082)
 --> (http://bugs.winehq.org/attachment.cgi?id=6082&action=view)
patch

This is caused by LISTVIEW_SetGroupSelection not being prepared that
LISTVIEW_SetItemState changes the nSelectionMark. This patch workarounds this.
There are still problems with selecting a new group with Ctrl+Click and using
Shift keys to navigate - AddGroupSelection have probably the same problem. We
should also test if the algorithm in SetItemState is correct.