Inconsisent prefix length from list and search prefix

[alxbse]

Currently it seems that using list_prefix in the XML-RPC api returns prefixes without the prefix_length field set. But using search_prefix returns prefixes with the prefix_length set.

I stumbled upon this while writing integration tests in a project using nipap and when first calling add_prefix (which seems to use list_prefix to return data) and then doing a search_prefix results in the prefixes not matching on the prefix_length field.

Is this behaviour by design?