query against the default graph and a a graph with a label

[Andrew U Frank]

i try to combine two queries where one goes against the default graph in
which data were loaded and the other against a specific graph.

SELECT *
from <http://localhost:3030/fabeln2/data/wn>
WHERE {
      ?s wn:translation ?o .
}
LIMIT 25

and

SELECT *
WHERE {
      ?s lit:hl1 ?o.
}
LIMIT 25

give both the expected results.
If i add the graph to the second query (in order to formulate a query
connecting the two grahs):

SELECT *
from <http://localhost:3030/fabeln2/data/wn>
WHERE {
      ?s lit:hl1 ?o.
}
LIMIT 25

i get nothing.
How to include the "default graph" in fuseki to combine with other graphs?

thank you!
andrew