samba - Nov 2011 - Explorer not refreshing with SAMBA 3.5.x on Solaris 10 x64

I am experiencing a problem with Explorer not refreshing view correctly.

The test case:

(1)    Map drive to SAMBA share and open drive in Explorer.

(2)    Create an empty file which displays correctly in Explorer, including the
size.

(3)    Re-open this empty file and fill it with data.  The size of the file does
not increment as the file is increasing in size.  Once the file update has been
completed, the closed file size does not display through Explorer correctly
until a F5 refresh is done.

File creation, updating and viewing are all done from the same Windows PC, using
the same mapped drive letter.

Batch file used to reproduce the refresh problem:
do-test.bat:
@echo off
set SOURCEFILE=c:\Windows\WindowsUpdate.log
c:\Windows\explorer.exe /n,/e,E:\
copy /y nul E:\SMBtest-0-size.txt >nul
echo.
echo ******** Pausing Samba refresh test... **********
pause
echo.
type %SOURCEFILE% >> E:\SMBtest-0-size.txt


End-user clients:
                Windows XP Professional SP3
                Windows 7 Enterprise SP1

Test server:
                OS: Solaris 10 x64
                SAMBA releases:
                                Refresh problem present: 3.5.8 (Bundled with
Solaris 10 x64)
                                                                                
3.5.8, 3.5.9, 3.5.15 (Compiled on host system)
                                Refresh works correctly: 3.2.3, 3.2.15 (compiled
on host system)

Of interesting note: The refresh works fine with SAMBA 3.5.8, 3.5.9, 3.5.15 on
Linux host.

Any help with this would be appreciated.  We have an automated process that
dumps data to a SAMBA share in production and the end-users rely on the refresh
to know when the process stops - this is how we found this.

Thanks

Brandon

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