Multilang-site override a option of JCategories that cause a SQL error

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In Joomla! 3.4.2 we improved the multilingual code. But for now if a component don't have disable a specific option in JCategories that gets overwritten on multilinguage sites.

Errors reported[edit]

A SQL error at some extensions that disable a option in JCategories but only on multilingual sites.

Example PhocaGuestbook: http://www.phoca.cz/forum/viewtopic.php?f=2&t=34526

Issue Report & Patch: https://github.com/joomla/joomla-cms/pull/7303

Versions affected[edit]

General Information

This pertains only to Joomla! version(s): 3.4.2

What is the cause[edit]

Just a SQL Error after the patch it should gone.

How to fix[edit]

Apply the patch https://github.com/joomla/joomla-cms/pull/7303.diff. This will be fixed in Joomla 3.4.3 that comes soon.