[Koha] buggy issue with 785 field display

[Haik Zargaryan]

Dear friends,

We are creating a catalog for our continuing resources. There are a lot of journals which at some point were split into several new ones. To define and display this relationship in the record the 785 MARC field, with 6 as a second indicator value, is used.

So, in our parent record (which was later split into two new ones), we have created two 785 fields respectively for each succeeding entry:

245 00$a Journal of Natural Sciences  
785 16$t Proceedings of Physics$w123456
785 16$t Biological Journal $w12345

According to the MARC standard based on these field values koha is supposed to display in the record view something like this:
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Split into: Proceedings of Physics and: Biological Journal.
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However, it shows:
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Split into .. and ...: Proceedings of Physics

Split into .. and ...: Biological Journal.

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Obviously, koha fails to "distribute the variables" in the respective split into ... and... fields.

Is this a bug, or we are doing something wrong?

regards,
haik.