[BUG]: DQL unsupported ordering is ignored and should raise an error

[rderbier]

What version of Dgraph are you using?

v23 v24

What steps will reproduce the bug?

DQL query with 2 ordering and one using a variable, like

orderdesc: val(SECTIONS_COUNT), orderasc: name

Expected behavior and actual result.

This is not supported and should raise an error. the second ordering is just silently ignored.

Additional information

No response