[Bug 22456] New: Wrong caching with INI functions

http://bugs.winehq.org/show_bug.cgi?id=22456

Summary: Wrong caching with INI functions
           Product: Wine
           Version: 1.1.41
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=27506)
 --> (http://bugs.winehq.org/attachment.cgi?id=27506)
Simple test program

I've written a program to manage some ini file and I've seen a wrong behaviour
in wine.
The origin of the problem I think is the cache system. I've isolated the
problem with a very simple program. The operations involved on button press
are:

1) Write the file test.ini with key value = WRONG (with
WritePrivateProfileStringA)
1a) Message on screen (ok to continue)
2) Delete ini file
3) Read the file test.ini (it doesn't exists now) with the default value =
RIGHT (with GetPrivateProfileStringA)

In Windows the result is RIGHT but in wine is WRONG, because it reads the
cached value! Only to obtain the compatibility with my software I've changed my
wine source in this way:

dlls/kernel32/profile.c

BOOL WINAPI WritePrivateProfileStringW( LPCWSTR section, LPCWSTR entry,
                    LPCWSTR string, LPCWSTR filename )
{

...

ret = PROFILE_SetString( section, entry, string, FALSE);
    // PROFILE_FlushFile();                 // COMMENTED
    if (CurProfile) PROFILE_ReleaseFile();  // INSERTED

...

}

NOTE:
I didn't test if other WritePrivateProfile* are affected by this problem or if
the problem instead is in the GetPrivateProfile*