[jboss-jira] [JBoss JIRA] (WFLY-12491) f:viewParam component only works for the first ajax request, but for the second ajax request and so forth the submitted value is null

f:viewParam component only works for the first ajax request, but for the second ajax request and so forth the submitted value is null ------------------------------------------------------------------------------------------------------------------------------------- Key: WFLY-12491 URL: https://issues.redhat.com/browse/WFLY-12491 Project: WildFly Issue Type: Bug Components: JSF Affects Versions: 18.0.0.Beta1 Environment: * JBoss EAP 7.2.3 * Java EE 7 Reporter: Chao Wang Priority: Major Labels: downstream_dependency I'm using the viewParam in my JSF page and it works well at first request, but when I send another request using ajax the value of viewParam is lost. This issue only happens when I use javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL=true. When I use javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL=false it works well.