I tested your code (I added two URLs to the hash) and I can't reproduce your problem. Neither key nor value get modified in any strange ways.

Maybe try to move your pageContents files and start with an empty, clean one and check if the error still occurs.

In reply to Re^3: Some Weird behavior with BerkeleyDB and WWW::Mechanize by moritz
in thread Some Weird behavior with BerkeleyDB and WWW::Mechanize by downer

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