Both the /warm_up_cache/ and /explore_json/ API endpoints should produce the same cache key for a given slice

Expected results

should return same cache key

Actual results

different cache key are getting generated

Screenshots

If applicable, add screenshots to help explain your problem.

How to reproduce the bug

1. run cache warmup for a slice
2. check the cache key value
3. explore the same slice in browser
4. different cache key will be generated so query will be fired.

Environment

(please complete the following information):

• superset version: 1.1.0
• python version: 3.8.9
• node.js version: 12

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

Json_Data for Explore chart

{"changed_on":1621922272000.0,"columns":["app_name"],"datasource":"1__table","extra_cache_keys":[],"extras":{"having":"","having_druid":[],"time_grain_sqla":"P1D","time_range_endpoints":["inclusive","exclusive"]},"filter":[],"granularity":null,"groupby":[],"is_rowcount":false,"is_timeseries":false,"metrics":[{"aggregate":"COUNT_DISTINCT","column":{"column_name":"app_id","description":null,"expression":null,"filterable":true,"groupby":true,"id":5,"is_dttm":false,"python_date_format":null,"type":"STRING","verbose_name":null},"expressionType":"SIMPLE","hasCustomLabel":false,"isNew":false,"label":"COUNT_DISTINCT(app_id)","optionName":"metric_6qp914zxuux_o2r0useg7ob","sqlExpression":null}],"order_desc":true,"orderby":[[{"aggregate":"COUNT_DISTINCT","column":{"column_name":"app_id","description":null,"expression":null,"filterable":true,"groupby":true,"id":5,"is_dttm":false,"python_date_format":null,"type":"STRING","verbose_name":null},"expressionType":"SIMPLE","hasCustomLabel":false,"isNew":false,"label":"COUNT_DISTINCT(app_id)","optionName":"metric_6qp914zxuux_o2r0useg7ob","sqlExpression":null},false]],"rls":[],"row_limit":100,"row_offset":0,"time_range":"Last week","timeseries_limit":0,"timeseries_limit_metric":null}

Json Data for warmup

{"changed_on":"2021-05-25T05:57:52","datasource":"1__table","extra_cache_keys":[],"extras":{"druid_time_origin":"","having":"","having_druid":[],"time_grain_sqla":"P1D","time_range_endpoints":["inclusive","exclusive"],"where":""},"filter":[],"granularity":null,"groupby":["app_name"],"is_timeseries":false,"metrics":[{"aggregate":"COUNT_DISTINCT","column":{"column_name":"app_id","description":null,"expression":null,"filterable":true,"groupby":true,"id":5,"is_dttm":false,"python_date_format":null,"type":"STRING","verbose_name":null},"expressionType":"SIMPLE","hasCustomLabel":false,"isNew":false,"label":"COUNT_DISTINCT(app_id)","optionName":"metric_6qp914zxuux_o2r0useg7ob","sqlExpression":null}],"order_desc":true,"orderby":[[{"aggregate":"COUNT_DISTINCT","column":{"column_name":"app_id","description":null,"expression":null,"filterable":true,"groupby":true,"id":5,"is_dttm":false,"python_date_format":null,"type":"STRING","verbose_name":null},"expressionType":"SIMPLE","hasCustomLabel":false,"isNew":false,"label":"COUNT_DISTINCT(app_id)","optionName":"metric_6qp914zxuux_o2r0useg7ob","sqlExpression":null},false]],"rls":[],"row_limit":100,"time_range":"Last week","timeseries_limit":0,"timeseries_limit_metric":null}