user32: Fix DefWindowProc behavior on WM_NCRBUTTONDOWN message

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
https://testbot.winehq.org/JobDetails.pl?Key=25405

Your paranoid android.


=== w7u (32 bit msg) ===
msg.c:4771: Test failed: ShowWindow(SW_RESTORE):overlapped: 18: the msg sequence is not complete: expected 0000 - actual 0088

=== w8 (32 bit msg) ===
msg.c:13932: Test failed: WM_NCRBUTTONDOWN on caption: 3: the msg sequence is not complete: expected 007b - actual 0000

=== w864 (32 bit msg) ===
msg.c:6482: Test failed: Update region shouldn't be empty
msg.c:6715: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
msg.c:6717: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:13932: Test failed: WM_NCRBUTTONDOWN on caption: 3: the msg sequence is not complete: expected 007b - actual 0000

=== w1064 (32 bit msg) ===
msg.c:6482: Test failed: Update region shouldn't be empty
msg.c:6715: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
msg.c:6717: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:13932: Test failed: WM_NCRBUTTONDOWN on caption: 3: the msg sequence is not complete: expected 007b - actual 0000

=== w864 (64 bit msg) ===
msg.c:6482: Test failed: Update region shouldn't be empty
msg.c:6715: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
msg.c:6717: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:13932: Test failed: WM_NCRBUTTONDOWN on caption: 3: the msg sequence is not complete: expected 007b - actual 0000

=== w1064 (64 bit msg) ===
msg.c:6482: Test failed: Update region shouldn't be empty
msg.c:6715: Test failed: InvalidateErase: 0: the msg sequence is not complete: expected 0085 - actual 0000
msg.c:6717: Test failed: Paint: 0: the msg sequence is not complete: expected 000f - actual 0000
msg.c:7078: Test failed: SetWindowPos:FrameChanged_clip: 10: the msg sequence is not complete: expected 0000 - actual 001a
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:6488: Test failed: Regions are different
msg.c:13932: Test failed: WM_NCRBUTTONDOWN on caption: 3: the msg sequence is not complete: expected 007b - actual 0000