winemac: Don't process WM_EXITSIZEMOVE through filters in macdrv_window_drag_begin().

[Ken Thomases]

For <https://bugs.winehq.org/show_bug.cgi?id=38557>.
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dlls/winemac.drv/window.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

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