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[FIXED-EXTJSIV-217] HtmlEditor.setValue has no effect (PR5)
In htmleditor, the call chain
setValue(myNewValue) -> me.mixins.field.setValue.cal -> checkChange -> newVal = me.getValue()
will cancel any effect of setValue(value) because newVal is the value of the the textAreaEl and not myNewVAlue.
A ref to this.textareaEl.dom.value might be missing somewhere.
Also, it seems that there is no 'value' config to initiate htmleditor with a user-value.