Heritrix: Internet Archive Web Crawler

We just disabled the HTTP Fetch module for certain
per-host overrides, expecting the affected URIs to land
in the logs with either untried (0) or too-many-retries
(after being untried multiple times in a row) statuses.
Instead, a few had connect-failure statuses... which
are only set by the HTTP Fetcher itself. Thus these
must have been left over from a previous attempt of the
same URI.

This is misleading, and might cause problems in other
cases -- as a URI continues to be treated as if
something on a previous attempt had happened again.