Loading fixtures containing data for Versionable/Searchable Models fails due to Duplicate-Key errors

Sample schema:

Blog:
actAs: [Versionable, Searchable]
columns:
id:

name: string
text: text

When dumping data of a schema with Versionable and/or Searchable Behaviour, the dump.yml will contain all data, including the *_version and *_index tables.

Trying to load the same .yml file results in Duplicate-Key constraint violations, as long as the data for the *_version and *_index tables is present.
The import is only successfull, when the data for these tables is discarded.
This leads to the issue, that one can only do a dump-load cycle, when the complete version history of a Model is discarded. Which makes dump-load for such models rather useless.