Amends f2f8820073.
I have no idea how this went through the CI, but assigning to a const
variable cannot possibly compile.
Reported-by: Axel Spoerl <axel.spoerl@qt.io>
Pick-to: 6.6 6.5
Task-nubmber: QTBUG-115839
Change-Id: I0f22dcd5ab691f92880ea3c6446aedca53df0721
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>