More than one result per metadata source

Hello,

a title search in a metadata source found two results. Both are in result queue, as the log says. The results are two different books with the same title, but distinct authors and identifiers.

In the metadata source configuration, the check box "more than one entry per source" is checked. Both entrys have priority 0.

But in the gui only the 2nd book found is visible.

Any hints?

Thanks!