Before this fix:
A readonly monetary field was not updating
its currency symbol when selecting another currency.
Scenario:
1. Activate multi-currency with $ (default) and €
2. In hr_expense, go to My Expenses to Submit
3. Create a new expense
4. Select 'EUR' as currency
=> Unit Price is correctly updated with €, but not Total.
With this fix:
Total displays the correct currency in edit mode.
Explanation:
Monetary fields in readonly are relying on _formatValue() to
display their value.
_formatValue() uses this.formatOptions.currency, which stores
the currency at loading of the field. We must update its value
whenever there is a change of currency.
opw-783378
Alexandre Kühn
732f176fe1