Some attributes of HTML Form element are lost by JSF rendering when enabling javax.faces.FACELETS_REFRESH_PERIOD in JBoss EAP 7

Issue

For example, regarding to the below, enctype and style attributes of HTML Form element are lost.

Expected HTML source:

<form id="it" name="it" method="post" action="/test-jsf/test.xhtml" enctype="application/x-www-form-urlencoded" style="font-size:8px;">

Actual HTML source:

<form id="it" name="it" method="post" action="/test-jsf/test.xhtml">

The issue happens on the following conditions:

• The javax.faces.FACELETS_REFRESH_PERIOD parameter is used on web.xml

<context-param>
  <param-name>javax.faces.FACELETS_REFRESH_PERIOD</param-name>
  <param-value>1</param-value>
</context-param>

• The h:form tag has a style attribute and the h:commandButton tag is used as page update.

<h:form id="it" style="font-size:8px;">
    <div class="container">
        <div class="form-group">
            <h:commandButton id="test01" value="Click Here"     <== HERE
                             actionListener="#{testBean.testFunc}" />
            <h:panelGrid columns="4" cellpadding="5" class="ui-grid"
                         style="width:1200px;">
                <h:outputText value="TEST STRINGS." /><br/>
            </h:panelGrid>
        </div>
    </div>
</h:form>

The form attribute(style, enctype and etc..) are lost when the h:commandButton tag is executed over three times.