Can't use an undefined value as an ARRAY reference at /var/www/html/bugzilla/process_bug.cgi line 562

[usmle Prep]

When trying to uncheck the CC list check box on the
bugs form I am getting the following error.Did any one
of you get it before.
The line causing it is 
$cc_add=join(',',@{$::MFORM{newcc}});
When I looked on the web I found that perl is known to
be behaving like this and it can be fixed if
@{$::MFORM{newcc}} be assigned in 2 steps instead of
one which I don't know how to do.Please let me know if
you have fixed this before.
Thanks a lot,
Sri
Bug processed  
    
Content-type: text/html 
Software error:
Can't use an undefined value as an ARRAY reference at
/var/www/html/bugzilla/process_bug.cgi line 562.



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