[explore][sample table] Sample table show ' no data' when there are rows retrieved

[jinghua-qa]

Sample table show ' no data' when there are rows retrieved, i tried Echarts seems this issue is observed in different chart types

Expected results

Sample chart will show data when there are rows retrieved

Actual results

Sample chart showed no data when there are rows retrieved

Screenshots

How to reproduce the bug

1. open dataset 'cleaned_sales_data'
2. select time-series area chart and create a chart
3. go to sample table
4. See error

Environment

(please complete the following information):

• superset version: latest master
• python version: python --version
• node.js version: node -v
• any feature flags active: d&d, d&d hybrid, UX_beta

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

Add any other context about the problem here.