This function re-executes the query used by QSqlQueryModel and refreshes
the data from the database. The query must not use bound values as these
values are not preserved.
[ChangeLog][QtSql][QSqlQueryModel] Added refresh() to refresh the model
data from the database.
Pick-to: 6.9
Task-number: QTBUG-123603
Change-Id: I3f1d779e07b88565abe825c31cfc4d7d1b2312c4
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
1bd883dbc1