Version:           unspecified (using KDE 4.7.2) 
OS:                Linux

The address book was imported from vcf files (old address book from kdepim 4.4). All contacts are displayed properly, but I can't add new information (e.g. new mail address or telephone number) into existing contacts. 

Reproducible: Always

Steps to Reproduce:
1. Create Address Book in Akonadi settings.
2. Import a base of vcf contacts.
3. Change the information about a contact

Actual Results:  
The new information is displayed only about 5-10 seconds and after that it disappears and only old information is displayed

Expected Results:  
The new information should be displayed all the time

It seems that kaddressbook creates new file without .vcf extension. For example "4EHBnOUfDv" instead of "4EHBnOUfDv.vcf". The "4EHBnOUfDv.vcf" file remains unchanged. So, 2 files coexist in contacts folder: recently changed "4EHBnOUfDv" and old "4EHBnOUfDv.vcf". kaddressbook seems to read the "4EHBnOUfDv.vcf", so new information is abandoned.