[Koha] MARC export range is assigning biblionumber to barcode

[Amir Seni]

Hi,

I am running koha 3.0 on a local production server and have need to 
transfer a block of bibliographic data.

i need a block from biblionumbers 2 - 100 from within a subset of 1 - 
3000. The block has barcode numbers 30000 - 30131.

So i proceeded to Tools-> Export Bibliographic and Holdings.

 From biblio number: 2
To biblio number: 100

I then proceed to import the items but eventually i get the information 
that the items are not being imported due to duplicate barcodes.
I try to import the same marc file using bulkmarcimport.pl and get the 
same duplicate barcode notice.

After running marcbreaker on the mrc file i notice the following:

=LDR  00757nam a22002057a 4500
=008  090718t\\\\\\\\xxu|||||\||||\00|\0\eng\d
=020  \\$a9780123694072
=080  \\$a528.8
=100  \\$aSchowengerdt Robert A.
=245  \\$aRemote Sensing$bModel and Methods for image processing$cRobert 
A. Schowengerdt
=250  \\$a3rd Edition
=260  \\$aAmsterdam$bElsevier$c2007
=300  \\$a515p
=650  \\$2Remote Sensing
=650  \\$2Sensoriamento Remoto
=942  \\$2udc$cBK
=952 
\\$p1$40$00$65288$91$bGIS_FM$10$o528.8$d2009-07-18$t1$8NFIC$71$2udc$yBK$aGIS_FM
=952 
\\$p2$40$00$65288$92$bGIS_FM$10$o528.8$d2009-07-18$t2$71$2udc$yBK$aGIS_FM
=999  \\$c2$d2
=952 
\\$w2009-07-18$p3$r2009-07-18$40$00$65288$93$bGIS_FM$10$o528.8$d2009-07-18$t3$71$2udc$yBK$aGIS_FM

on 952, barcode p1 should be p30000, p2 should be p30001 and so on with 
the other bibligraphicals

So i guess that the barcode is being substituted by biblionumber 
whenever i select a range of biblios to export.

I don't recall having this problem whenever i exported everything 
without selecting a range.

Is there any fix on this or any suggestion?

Thanks