self to self relationship

[listy]

I have added this to schema an run this code:
from pyasm.search import Search

server.set_project('testovy')

search_key = 'testovy/asset?project=testovy&code=ASSET00002'

search_type, search_code = server.split_search_key(search_key)
search = Search(search_type)
sobject = search.get_by_search_key(search_key)

related_sobjects = sobject.get_related_sobjects('testovy/asset_in_asset', path='child')

And this is works fine.
Now i have duplicates in schema:
"
<connect from="testovy/asset_in_asset" to="testovy/asset" relationship="code" from_col="parent_asset_code" to_col="code" path="parent" type="many_to_many"/>
<connect from="testovy/asset_in_asset" to="testovy/asset" relationship="code" from_col="child_asset_code" to_col="code" path="child" type="many_to_many"/>
<connect from="testovy/asset_in_asset" to="testovy/asset" relationship="code" from_col="parent_asset_code" to_col="code" type="many_to_many"/>
<connect from="testovy/asset_in_asset" to="testovy/asset" relationship="code" from_col="child_asset_code" to_col="code" type="many_to_many"/>
"

Is this ok?