In df69b5bb the aggregates of a column with currency was shown only if
records were of the same currency when a grouping was closed.
But when the list view is grouped, this would cause a number of issue:
- error if with first grouping is opened, another one is closed
- if the first grouping was closed aggregates were always shown
- the code only acts when closing a grouping
- aggregates could be shown when they should not
- aggregates could be not shown when they should
So this commit change things so this feature is ignored when the list
view is grouped.
There is also a fix so `currency_field` of the column is used instead of
just using `currency_id` that may be wrong.
note: only for saas-14 and saas-15 (feature is not present in saas-16)
opw-810835
closes#22598
Nicolas Lempereur
5b230c34cb