Describe the bug

When making an upgrade from 1.7.5.x and previous version to 1.7.7.0 build stable, the precision of each currency installed is set to 6, leading to unwanted display on FO, and invoices.

Expected behavior

After upgrade, the precision of the currency should be the one set by default (2 decimals for example for Euro) instead of 6.

Steps to Reproduce

Steps to reproduce the behavior:

1. Install 1.7.5.x version with Euro installed and autoupgrade module
2. Make an upgrade to 1.7.7.0 stable build
3. Go to International > Localization > Currencies and open Euro parameters : Decimals is set to 6 instead of 2
4. Go to FO > Clothes : Demo Product prices are displayed on 3 digits
5. Make an order with these products, confirm the order and generate invoice in BO : Invoices has 3 digits.

Screenshots

Currency Euro in BO : decimals set to 6 after upgrade :

Display on FO with 3 digits (with demo product) :

Invoice with 3 digits in Euro :

Additional information

• PrestaShop version: 1770 stable build 5
• PHP version: N/A