Which version are you using? I just tried the sample snippet given in the bugreport you linked to, and it seems to work fine now with the current version (WM-1.34 and libwww-5.805), i.e. I can set the empty hidden fields without any problem (and $mech->current_form->dump displays them)...

In reply to Re: mechanize bug - is there a workaround? by almut
in thread mechanize bug - is there a workaround? by rouble

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