Function resetSourceDefaulter

_benchmarks/sample_echarts.js:17467–17470

* MUST be called before mergeOption of all series.

(ecModel)

     */

    function resetSourceDefaulter(ecModel) {
      // `datasetMap` is used to make default encode.
      innerGlobalModel(ecModel).datasetMap = createHashMap();
    }
    /**
     * [The strategy of the arrengment of data dimensions for dataset]:
     * "value way": all axes are non-category axes. So series one by one take