[Bug] : Percent value is converted to a different value

[mischnic]

Describe the bug
70% is minified into 1%

To Reproduce
Steps to reproduce the behavior:

1. Go to https://cssnano.co/playground/
2. Insert body { opacity: 70%; } on the left
3. "Run"
4. See incorrect result

Input

body {opacity: 70%;}

Current behaviour

body{opacity:1%}

Expected behavior

body{opacity:70%}

Desktop (please complete the following information):

• cssnano: 4.1.10
• cssnano-preset-default: 4.0.7
• postcss-convert-values 4.0.1

Additional context
This seems to be fixed by using this config:

module.exports = {
	preset: [
		"default",
		{
			convertValues: false,
		},
	],
};

[anikethsaha]

Thanks for the issue

This has been fixed in master.
It will be released soon.
Till then use cssnano@nightly

[ludofischer]

Fixed in 5.0.0-rc.2