The latest 2.0 version mutilates multipart messages when a reverse proxy is 
configured using ProxyPass and ProxyPassReverse.

The setup is as follows:

1. Apache is setup as a reverse proxy and only accepts HTTPS traffic
2. Tomcat is used as the backend server and the communication between Apache 
and Tomcat is over plain HTTP (no HTTPS).

The actions are:

1. The client sends a multipart POST request.
2. Apache forwards the request to the Tomcat server. Using ethereal we found 
that in the forwarded message the first part of the multipart message is gone!

Notes:

1. When accessing Apache over HTTP instead of HTTPS the multipart message is 
forwared correctly: no parts are lost.
2. Using Apache 2.0.54 instead of 2.0.55 this problem does not occur.