Currently, the "removedoubles" command deletes the records from the content table without marking them with c_deleted. Since we use webdav sync from SOGo Connector, this prevents those deletions from being taken into account. Moreover, this can be worked-around by deleting the address book and recreating it but this is not possible with SOGo Integrator, which would either refuse ("personal") or delete the addressbook from SOGo altogether with its contacts.

I therefore suggest that the current behaviour be effective only with a command-line flag, while using the c_deleted field otherwise.