Werk #2474: Fixed possible corruption of user datasets (contact, mail, rbn config)

Component Setup
Title Fixed possible corruption of user datasets (contact, mail, rbn config)
Date Jul 23, 2015
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.2.7i3
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

When moving user notification rules in an installation where a lot of users are working with the GUI, it could happen that the file which stores contact, mail and user rbn configuration (contacts.mk) could corrupt and lead to lost attributes for all the users.

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