[Unionfs] unionfs 2.3.x fails initial file append

[Paul Bender]

I am not sure the best way to describe the problem ...

I maintain MiniMyth. MiniMyth's root file system is a squashfs image 
that is loaded into RAM and made to appear to be read-write using 
unionfs. It has worked well until unionfs 2.3.x

With unionfs 2.3.x, I encounter a problem when I first echo a string to 
a file that was contained in the original squashfs image. The string 
from the first echo statement do not appear in the file. The strings 
from subsequent echo statements do appear in the file.

Also, upon first access of the file, I th line 'unionfs: new lower inode 
mtime (bindex=?, name=bin)' appears in the log. 'bin' is the directory 
that contains the file. '?' is either 0 or 1 (I do not recall which).

Any ideas on how to fix this would be appreciated.