Polar axis ignores custom default options

[OldBuddy]

Expected behaviour

Polar axis should respect options set with 'Highcharts.setOptions' in case when 'yAxis' definition is array.

Actual behaviour

Default options for yAxis are ignored.

Live demo with steps to reproduce

https://jsfiddle.net/nc9ruy3x/

Product version

Latest

Affected browser(s)

All

[raf18seb]

Hi @OldBuddy, thanks for reporting a bug.

Related to #1053 (was fixed for a normal axis, but not for the radial axis)

Demo with a workaround: https://jsfiddle.net/BlackLabel/hkd97xL2/

(function(H) {
  var fireEvent = H.fireEvent,
    merge = H.merge,
    defaultOptions = H.defaultOptions,
    registerEventOptions = H._modules['Core/Foundation.js'].registerEventOptions;

  H.addEvent(H.Axis, 'init', function() {
    if (this.isRadial) {
      this.setOptions = function(userOptions) {
        var options = this.options = merge(this.constructor.defaultOptions,
          this.defaultPolarOptions,
          userOptions, merge(
            // if set in setOptions (#1053):
            defaultOptions[this.coll], userOptions));
        // Make sure the plotBands array is instanciated for each Axis
        // (#2649)
        if (!options.plotBands) {
          options.plotBands = [];
        }
        fireEvent(this, 'afterSetOptions');
      };
    }
  });
})(Highcharts)