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CheyneCheyne 

Dependent multi-select inputfield not rendering correctly after ajax event

I have a Visualforce that includes two Account fields, which have a field dependency defined. The controlling field is a single-select picklist and the dependent field is a multi-select picklist. When both fields are displayed on page load, they both display correctly, with the correct values that are in the Account record. However, when I display the dependent (multi-select) field in an outputpanel that is only rendered via an ajax event, after clicking a commandlink, the value in the dependent field shows as null, even though it is not actually null on the record.

Below is a simplified example. In this example, all of the outputfields display the value that is on the account. However, the inputField for Dependent_Field__c in the "bottom-area" outputpanel always shows null after clicking the "Set String" commandlink (the Controlling_Field__c input in the "bottom-area" panel displays the correct value after the rerender).

Has anyone run across this issue before or have any ideas as to what the problem might be?

Visualforce
<apex:page controller="MultiSelectController">
    <apex:form >
        <apex:commandLink action="{!setStr}" rerender="bottom-area" value="Set String"/>
        
        <br/><br/>
        
        <apex:outputField value="{!acct.Controlling_Field__c}"/><br/>
        <apex:outputField value="{!acct.Dependent_Field__c}" /><br/>
        <apex:inputField value="{!acct.Controlling_Field__c}" label="Controlling Field"/><br/>
        <apex:inPutField value="{!acct.Dependent_Field__c}" label="Dependent Field"/> <br/>
        
        <br/><br/>
        
        <apex:outputPanel id="bottom-area">
            <apex:outputPanel rendered="{!str != null}">
                <apex:outputField value="{!acct.Controlling_Field__c}" /><br/>
                <apex:outputField value="{!acct.Dependent_Field__c}" /><br/>
                <apex:inputField value="{!acct.Controlling_Field__c}" label="Controlling Field"/><br/>
                <apex:inPutField value="{!acct.Dependent_Field__c}" label="Dependent Field"/> <br/>
            </apex:outputPanel>
        </apex:outputPanel>
    </apex:form>
</apex:page>

Apex Controller
public class MultiSelectController {
    public Account acct {get; set;}
    public String str {get; set;}
    
    public MultiSelectController() {
        this.acct = [SELECT Controlling_Field__c, Dependent_Field__c FROM Account WHERE Id = '001E0000010iUnj'];
    }
    
    public void setStr() {
        this.str = 'test';
    }
}

 
Best Answer chosen by Cheyne
ShashankShashank (Salesforce Developers) 
This has been published as a known issue. The status can be tracked here: https://success.salesforce.com/issues_view?id=a1p30000000T2KyAAK

All Answers

ShashankShashank (Salesforce Developers) 
This has been published as a known issue. The status can be tracked here: https://success.salesforce.com/issues_view?id=a1p30000000T2KyAAK
This was selected as the best answer
CheyneCheyne
Thanks, Shashank, that seems to be exactly the issue I'm experiencing.