[Koha] Repeating inside Repeating

[David Everly]

It's me again...

Sorry to send so many notes, but here is another thing I don't
understand for Koha 2.0.0:

653 is repeatable and contains $a which is also repeatable within
one 653.  (Am I reading
http://www.loc.gov/marc/bibliographic/ecbdsubj.html#mrcb653 correctly?)

It is defined this way also by default in MARC tag structure admin.

Now when I add a new biblio, I receive one instance, and since I need
two instances, I click on the "+" sign.  But instead of just one, two
are added, so now I have three.

My un-educated guess is that since 650 is repeating but not $a within
650, I can click on 650's "+" and get only one additional, and sure
enough, that is true.  But wait...now there is also yet another 653a
which was added by my clicking on 650's "+".

Now I further guess that this may have something to do with things near
line 378 of intranet/cgi-bin/acqui.simple/addbiblio.pl, but I can't
really tell what is going on there (perl isn't my forte).

Should I have used normal instead of simple to fix this?  Is there a way
to distinguish XXX fields that repeat from $a fields that repeat?

My only change with respect to default MARC21 configuration is I set
653a to be display-able on tab 3 (I backed out changes mentioned in my
earlier emails, fearing that they caused this, but they apparently did
not).

Thanks again,
Dave.
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