We have an alias combining multiple indexes. Searching across the indexes via the alias and the _search endpoint is fine.
However, when referring to a document by its ID as a URI:
we get the error:
"Alias [the-alias] has more than one indices associated with it [[the-index1, the-index2]], can't execute a single index op"
I can understand why you can't index via a multi-index alias, but why can't you get a document via a URI?