[Bug 11329] New: Wine "forgets" that it's using a vfat filesystem and doesn 't use case-insensitive optimizations

http://bugs.winehq.org/show_bug.cgi?id=11329

Summary: Wine "forgets" that it's using a vfat filesystem and
                    doesn't use case-insensitive optimizations
           Product: Wine
           Version: 0.9.53.
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

System Shock 2 (after using SSTool to remove copy protection) works perfectly
in Wine if run within a virtual desktop.

The exception, however, is the load times.  For me the game takes nearly 20
minutes to load normally.  The game taxes the filesystem a lot - it unpacks a
large zip file of the unpatched game files, and then starts looking everywhere
for newer versions of them.  For every one of these, Wine has to check that
they don't exist (in a case-insensitive way) in several directories.  This 20
minute delay when changing areas makes the game nearly unplayable.

When I moved the game over to a new fat32 partition I made on an external
drive, the load time dropped from 20 minutes to 20 seconds.  I was quite
impressed.

Strangely, however, after I restarted my computer the load times returned to 20
minutes.  The drive is still mounted in the same place:
/dev/sdb2 on /media/disk-1 type vfat
(rw,nosuid,nodev,shortname=mixed,uid=1000,utf8,umask=077,usefree)

I believe it's using the same options, since I didn't mount it by hand in
either case and let Ubuntu automount it.

I have an F:\ drive pointing to that filesystem that I set up in winecfg.  The
game is installed there (at F:\sshock2)

So, what happened?  It seems like Wine is no longer using its case-insensitive
optimizations, but I have no clue how to force it to do so.