Context value is not passed in JSON call of base_import

[Andreas Brueckl]

Problem:
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I am using German values when I am importing many2one fields in CSV. For example I use the value "Deutschland" for the field "country_id" of res.partner. When validating the csv import, an error is shown which says that the value "Deutschland" is not available.
The language of the user is set to "de_DE".

Solution Approach
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When I manually add the line "context.update({'lang': 'de_DE'})" in "location_name_search" of base/res/res_country.py then everything is working fine.
After some further investigation I found out that the json-call of "base_import.import:do" does not pass the context correctly. I think that the context should be passed like the option "dry_run" is.

[Andreas Brueckl (andreas-brueckl)]

The original problem occurs in version 7.0-20131003-231232 (Ubuntu 12.04 LTS).

Now I tried the same import in another OpenERP instance (source from 2013-10-23) and everything was working correctly. The country_id "Deutschland" has been recognized as "Germany". In both instances I have installed both languages (en + de).

I have no idea where the difference between the instances is.
Can anyone confirm this issue?