[Bug 54652] New: urlmon:url - The "http protocol direct read test" sometimes get an unexpected ref count on Windows

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54652

Bug ID: 54652
           Summary: urlmon:url - The "http protocol direct read test"
                    sometimes get an unexpected ref count on Windows
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: urlmon
          Assignee: [e-mail]
          Reporter: [e-mail]

urlmon:url - The "http protocol direct read test" sometimes get an unexpected
ref count on Windows:

protocol.c:3576: Testing http protocol (direct read)...
protocol.c:3525: Test failed: ref=3
protocol.c:3580: Testing http protocol (redirected)...

See https://test.winehq.org/data/patterns.html#urlmon:protocol

With only 5 instances over the past 8 months this is pretty rare but may be
getting more frequent:
* 2022-08-08 on w8adm 32-bit
* 2022-08-11 on w8adm 32-bit
* 2023-01-09 on w10pro64-hi-u8 64-bit
* 2023-01-13 on w10pro64-ko 64-bit
* 2023-03-06 on w864 32-bit

Like many other refcount tests:
* Is this a race condition? Could it be some windows thread holding references
to the object?
* Is this test really needed?