This fix keeps spreadsheet pivot tables working as expected after an underlying spreadsheet engine update. Users can rename measures and include the same measure more than once without side panel or autocomplete issues.

See https://github.com/odoo/enterprise/pull/67268#issue-2427359270

This fixes spreadsheet pivot reports so the same measure can be added more than once, including with custom names, without causing display or interaction issues. Business users get more flexible spreadsheet reporting and more reliable pivot tables when comparing the same metric in different ways.