Multi-listed assets

[tt1pjm]

When attempting to retrieve a multi-listed asset an arbitrary one is returned: muFunds("nav","IE00BKX55S42","morningstar-uk")
It's valid but also different (morningstar uk has this asset listed for 5 different exchanges). To be able to select the correct asset we'd need to pass in the exchange to uniquely identify it or maybe default to the exchange of morningstar country being queried.