Pie chart avoidLabelOverlap hides label even when there are lot's of free space

[tapio-fuusor]

Version

5.0.0

Steps to reproduce

Open https://echarts.apache.org/next/examples/en/editor.html?c=pie-doughnut
and paste this code to Edit example -section:

option = {
    series: [
        {
            type: 'pie',
            radius: '25%',
            avoidLabelOverlap: true,
            label: {
                show: true,
                position: 'outside',
                formatter: '{b}\n{d}%',
            },
            data: [
                { name: 'under 25',value: 14},	
                { name: '25-29',value: 62},	
                { name: '30-34',value: 73},	
                { name: 'Not visible',value: 62 },
                { name: '40-44',value: 30},	
                { name: '45-49',value: 12},	
                { name: '50-54',value: 1},	
            ]
        }
    ]
};

Data point named "Not visible" becomes hidden very soon if browser size is resized to smaller size even when there is lot's of free space to show label

What is expected?

Label "Not visible" should be visible

What is actually happening?

Label is hidden when it should not

---

I was updating from 4.9 to 5.0 and ran into this issue as 4.9 works better in this situation

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