Regression with chart default options

[emmcb]

Hello,

Since beta 11 I have the following two regressions when setting some options in defaults:

• As most of my charts does not need parsing, for optimization purpose I set parsing: false as default, then specify the parsing option only in the charts that need it, for example a time chart that uses {t, y} data. It stopped working since beta 11, unless I remove the parsing: false in defaults.

Fiddle to reproduce: https://jsfiddle.net/2ed491s3/
The chart displays no data, but it works if you change the chart.js version to beta 10.

• Maybe related, I also specify this way the date fns locale in defaults:

import fr from 'date-fns/locale/fr'

defaults.set('scales', {
    time: {
        adapters: {
            date: {
                locale: fr
            }
        }
    }
})

Since beta 11, this breaks the chart tooltips, I get tons of format errors when hovering the chart. It works again (but not localized) if I remove the locale: fr line.
I do not know how to reproduce this one in a fiddle due to the import, but should be easy to reproduce locally.