winex11.drv: Don't memcpy() over the DROPFILES point just after setting it.

dlls/winex11.drv/xdnd.c

@@ -566,10 +566,10 @@ static void X11DRV_XDND_SendDropFiles(HWND hwnd)
         if (dropHandle)
         {
             DROPFILES *lpDrop = GlobalLock(dropHandle);
-            lpDrop->pt.x = XDNDxy.x;
-            lpDrop->pt.y = XDNDxy.y;
             memcpy(lpDrop, GlobalLock(current->contents), GlobalSize(current->contents));
             GlobalUnlock(current->contents);
+            lpDrop->pt.x = XDNDxy.x;
+            lpDrop->pt.y = XDNDxy.y;
             TRACE("Sending WM_DROPFILES: hWnd(0x%p) %p(%s)\n", hwnd,
                 ((char*)lpDrop) + lpDrop->pFiles, debugstr_w((WCHAR*)(((char*)lpDrop) + lpDrop->pFiles)));
             GlobalUnlock(dropHandle);