Jim Ferenczi a73ad248e8
Fix backport of #46731 (#52744)
This change fixes the incomplete backport of #46731 in 7.x (as of 7.5).
We now check if `max_children` is set on the top level nested sort and fails with an
exception if it's not the case.

Relates #46731
Closes #52202
2020-02-26 10:46:51 +01:00
..
2020-02-26 10:46:51 +01:00