onchange event and programmatic input value change conflict on IE

I've noticed that in different versions of Internet Explorer the onchange event is not captured when the value of an input is altered by a js function, behavior that does not occur with other browsers such as Mozilla or Chrome.

Investigating a little I found that the correct operation of onchange in IE is not guaranteed when the value is altered by js:

• onchange not fired on IE

• onchange not fired when autocomplete is on

  Example (test on IE):

function onchangeRequest(){
  console.log('onchange fired');
}

function changeValue (input){
  input.value +=  "hello"
}

<h4> focus lost doesnt invoke onchangeRequest() </h4>

<input id="valueInput"  onkeyup="changeValue(this);" onchange="onchangeRequest();" />

<h4> focus lost invokes onchangeRequest() </h4>

<input id="valueInput" onchange="onchangeRequest();" />

I have not found a convincing explanation of the reasons why IE does not solve those situations correctly. Is this a "known bug" which we have to deal with? Is there any official reference where it is stated that IE does not guarantee the correct behavior of onchange event?