File modified immediately after checkout not shown as modified

Please see discussion in this thread:

  http://subversion.tigris.org/servlets/ReadMsg?list=users&msgNo=77485

In short, a file is checked out and then quickly modified, but afterwards
subversion does not think it is modified until you then "touch" the file.

This has something to do with the modification timestamp on the file, and
possibly the behavior of the reiserfs filesystem (I'm guessing about that part).

Note: bug is not always reproducible. Rebooting seemed to be required to
reproduce it (at least in one case).

svn 1.4.4 (r25188)
SuSE Linux 10.3
Linux todd 2.6.22.17-0.1-default #1 SMP 2008/02/10 20:01:04 UTC i686 i686 i386
GNU/Linux
mount(8) shows: /dev/md0 on / type reiserfs (rw,acl,user_xattr)

http://subversion.tigris.org/servlets/ReadMsg?list=users&msgNo=77485

Original issue reported by archiecobbs