Component: Table - Sorting does not work when grouping rows

[RichardReedge]

Describe the bug

This has been reported before and was fixed:
#13773

But the issue still exists.

When you add sortField to the table in combination with groupRowsBy, the table is not sorted by the field.

Environment

Reproducer

https://stackblitz.com/edit/lwfasm-cqsegc

Angular version

18.2.5

PrimeNG version

17.18.10

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

18.20.3

Browser(s)

No response

Steps to reproduce the behavior

View the reproducer, the table rendered has both a sortField and a groupRowsBy attribute.

Expected behavior

Table is sorted by the Sort Order column.