download of a package through RHN proxy, using a private channel fails with "UnsatisfyableByteRangeException"

Issue

• download of a package through RHN proxy, using a private channel fails with this error in the apache error_log :

[error]   File "/usr/share/rhn/proxy/apacheServer.py", line 63, in __call__
[error]     ret = f(req)
[error]   File "/usr/share/rhn/proxy/apacheHandler.py", line 358, in handler
[error]     return self.response(req, ret)
[error]   File "/usr/share/rhn/proxy/apacheHandler.py", line 452, in response
[error]     return self.response_file(req, response)
[error]   File "/usr/share/rhn/proxy/apacheHandler.py", line 405, in response_file
[error]     (start, end)=parse_byteranges(req.headers_in['Range'], size)
[error]   File "/usr/lib/python2.6/site-packages/spacewalk/common/byterange.py", line 57, in parse_byteranges
[error]     raise UnsatisfyableByteRangeException

• error 500 reported by a client using yum to download a package stored in the private channel of the RHN proxy