Fix RequestCleanup bug with Git over HTTP

Decide if a continution is going to be used early, before the filter
that will attempt to cleanup a RequestCleanup. If so don't allow
entering the RequestCleanup part of the system until the request is
actually going to be processed.

Change-Id: I1fd3c97beefccc1cb4f0aed037c96a4bdaf78ff1
1 file changed