MERGE timeouts - part 2

Here's another MERGE timeout bug, seemingly unrelated to the first
one.  In particular, Steve Williams *swears* there is no http
compression going on at all.

    - version :  0.25 (??)       "definitely no compression anywhere!"
    - OS      :  client:  win32
    - Recipe  :  svn add 2GB of data (15000 files, 100 dirs)
                 svn commit
                 two hours of watching dots (sending txdeltas)
                 massive network activity (MERGE response, we assume...)
                 massive wc disk thrash (parsing the MERGE response...)

       ....................svn: RA layer request failed
       svn: Commit failed (details follow):
       svn: MERGE request failed on '/repos/test/trunk/data'
       svn: MERGE of '/repos/test/trunk/data': timed out waiting for
server

My only question is:  how can neon timeout, if it's parsing the MERGE
response??