Case of wrong decimal separator

Hello!

I am writing for a common use case we noticed.

Say that the user uses the wrong decimal separator. e.g. they used , while woocommerce is setup to use ..
Then the editor seemingly proceeds with saving and even shows the new values afterwards (until reload).

However, the values are not saved and the old values are being deleted.

I strongly believe that a warning should be issued in such cases and wrong formals like 9,99 should not be accepted. Of course, this should depend on the user woocommerce preferences.

Without any warnings, the current behavior is quit confusing for most user and could lead to errors.

Thank you and keep up the good work!