[Bug 53172] New: advapi32:registry - test_enum_value() has a pair of rare failures in UTF-8 system locales

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53172

Bug ID: 53172
           Summary: advapi32:registry - test_enum_value() has a pair of
                    rare failures in UTF-8 system locales
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: advapi32
          Assignee: [e-mail]
          Reporter: [e-mail]

advapi32:registry - test_enum_value() has a pair of rare failures in UTF-8
system locales:

registry.c:558: Test failed: data set to 'xxxxxxxxxxxxxxxxxxxx' instead of
'foobar' or x's, data_count=21
registry.c:576: Test failed: data set to 'xxxxxxxxxxxxxxxxxxxx' instead of
'foobar' or x's, data_count=21

https://test.winehq.org/data/patterns.html#advapi32:registry

The line 558 and 576 failures happen about with the same frequency (~13% each)
but independently from each other so that most times there is at most one in
the report.

And they only happen in the TestBot's two UTF-8 test configurations:
w10pro64-en-AE-u8 and w10pro64-hi-u8.