this.dispatchEvent(UPDATE) called too often

[FrancescoCioria]

description

this.dispatchEvent(UPDATE) should be called only when TextareaAutosize receives an unexpected props.value while, at the moment, it's called every time props.value is different from prevProps.value which happens after every onChange

how to reproduce

• {optional: describe steps to reproduce defect}

specs

• in this.onChange cache the current value as this.currentValue
• in componentDidUpdate call this.dispatchEvent(UPDATE); only if props.value is different from this.currentValue

misc

{optional: other useful info}