This is the revision history for has extra stuff that makes it a little harder to get a clean slate, but if you in <freenode.net:##NULL>

factoid_idsubjectcopulapredicateauthornamespace
14815 has extra stuff that makes it a little harder to get a clean slate, but if you were creating a regular module, why not just "package reset; BEGIN { our $clean_hints = $^H; our %clean_hints = %^H }" ? haarg <*:##NULL>