I'm using ExtJS 6.7 Modern toolkit and [Ext.grid.Tree.selectOnExpander](https://docs.sencha.com/extjs/6.7.0/modern/Ext.grid.Tree.html#cfg-selectOnExpander) = false does not work properly when data for expandable node is loading from a remote server, i.e. node is selected when I click on the expander.

I expect that in this case the node will NOT be selected as in the case when the data is already loaded.

Check [this fiddle](https://fiddle.sencha.com/#view/editor&fiddle/31u0) as an illustration - try to expand node when it is loaded and when it is not loaded yet using expander.

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So far I've tried to check fired events with [Ext.util.Observable.capture](https://docs.sencha.com/extjs/6.7.0/modern/Ext.util.Observable.html#static-method-capture) and it seems like extra [`childtap`](https://docs.sencha.com/extjs/6.7.0/modern/Ext.dataview.Component.html#event-childtap) event is triggired. I don't yet understand why. Seems like a bug for me.