Nik Everett ce8e042b66 Reindex: fix reindex-from-remote from <2.0 (#22931)
In 5.2 we stopped sending the source parameter if the user didn't
specify it. This was a mistake as versions before 2.0 look like
they don't always include the `_source`. This is because reindex
requests some metadata fields. Anyway, now we say `"_source": true`
if there isn't a `_source` configured in the reindex request.

Closes #22893
2017-02-02 11:46:24 -05:00
..