Version

5.4.2

Link to Minimal Reproduction

https://echarts.apache.org/examples/en/editor.html?c=candlestick-simple&code=PYBwLglsB2AEC8sDeAoWsAeBBDEDOAXMmurGAJ4gCmRA5JALZW0kC-ANCeTvkUhyQAmAQzDC8VMEQDaJdKlKk8wAK4AnAMY1YsxYoV7FwogCYADJ0OKARkQDMAFktX0GogEYLcq4PsAOZxcRMG1ac3cAdgBaTyiTBxYXARcDF2NYBy8XdFtYOwBWQKs3PKzs31h8sqDRUPDo2JN8xKtkq1SrdLt3IsNcuwDvQxK7O169CocnIYnaunqYsziANhbDNsMOwy7B7Nhc90KZxRKjvcmTccVgurNIxbiItb1WGYBdb1f0N-cJNQgqIQdN4tmRKKENMJoIIADaAyAaADWtHGVGgGmAgm0oPQGDoNxRx1g5BktGEKNgtGsFKpNMEtDesAA9EzYAALKhqKj7WD4WAAcwgADc0WQAO4QLSwdgQABmsDF3MFItgGl5YDwCuAakREGg_NgMy-pGNH1YAG4gA

Steps to Reproduce

1. create a candle stick series
2. in series level in encode object in "y" property give same values
3. series: [
   {
   type: 'candlestick',
   encode: {
   x: 'date',
   y: ['a', 'b', 'b', 'd'] // here b is given twice ,if we give c its working
   }
   }
   ]

Current Behavior

chart is not getting plotted

option = {
xAxis: {
type: 'time'
},
yAxis: {},
dataset: [
{
source: [
{
a: 20,
b: 34,
c: 10,
d: 38,
date: '2017-10-24'
},
{
a: 40,
b: 35,
c: 30,
d: 50,
date: '2017-10-25'
},
{
a: 31,
b: 38,
c: 33,
d: 44,
date: '2017-10-26'
},
{
a: 38,
b: 15,
c: 5,
d: 42,
date: '2017-10-27'
}
]
}
],
series: [
{
type: 'candlestick',
encode: {
x: 'date',
y: ['a', 'b', 'b', 'd'] // here b is given twice ,if we give c its working
}
}
]
};

Expected Behavior

chart should be plotted

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response