Nepomuk always indexing at the beginning of every session

[Valerio Passini <valerio.passini@unicam.it>]

Hello, I would like to know if Nepomuk is misbehaving and if this is 
happening only to me. At every new session, nepomuk starts indexing the 
configured folders, even if no change has been made in them and the 
database has data inside (i.e. it's possible to do a search and retrieve 
results). Considering that the indexing process is very heavy on CPU, 
this is really boring and at least a complete waste of resources.
Should I purge the database and start a new one? Is this a design flow? 
Should I do a bugreport to nepomuk?
At the moment I run Sid with the KDE 4.5.1 packages available in the 
semi-official repository.