Fix MYFACES-4679 / PH63238 in JSF (Ajax Invokes Actions Unintentionally)

[volosied]

Describe the bug
Ajax Events Can Trigger Button Actions Unintentionally

Steps to Reproduce
If some element is ajax-enabled and specifies an event, it may trigger the action of the encompassing element.

For example, the blur event would trigger the bean.confirm action:

<h:commandButton id="confirm2" value="listener" action="#{bean.confirm()}" >
 <f:ajax event="blur" listener="#{bean.listener()}"/> 
</h:commandButton>

Expected behavior
The ajax enabled tag should not invoke any actions other than the listener, if specified.

Diagnostic information:

• OpenLiberty Version: Since 24.0.0.1
• Affected feature(s): jsf-2.2, jsf-2.3, faces-3.0, faces-4.0
• Java Version: N/A
• server.xml configuration (WITHOUT sensitive information like passwords)
• If it would be useful, upload the messages.log file found in $WLP_OUTPUT_DIR/messages.log

Additional context
Add any other context about the problem here.