[SalesForce] Refreshing issues in lightning:recordViewForm

I'm having TestObject as parent object and New Custom Object having M-D relationship to it. TestObject having Min and Max Rollup summary fields which will rollup number field in child object.

I was rendering parent information using lightning:recordViewForm with certain fields, if we perform any dml in child need to refresh the parent record information.

Here's my Markup code:

<aura:if isTrue="{!v.showViewForm}">
    <lightning:recordViewForm recordId="a0G2800000KJxZp" objectApiName="TestObject__c">
            <lightning:layout class=" slds-wrap custom-layout">

                <lightning:layoutItem size="4" padding="around-small">
                    <lightning:outputField fieldName="Name" class="output-element"/>
                </lightning:layoutItem>
                <lightning:layoutItem size="4" padding="around-small">
                    <lightning:outputField fieldName="Max__c" class="output-element"/>
                </lightning:layoutItem>
                <lightning:layoutItem size="4" padding="around-small">
                    <lightning:outputField fieldName="Min__c" class="output-element"/>
                </lightning:layoutItem>
            </lightning:layout> 
    </lightning:recordViewForm>
</aura:if>

Whenever i was updating child records, i just need to refresh the parent details.

I tried with setting boolean variable false before making dml, after success callback making the boolean as true, but it didn't reflected.

Here's controller code:

update : function(component, event, helper) {
    component.set("v.showViewForm", false);
    var action = component.get("c.updateParentValues");
    action.setParams({
        'updateList': component.get("v.records")
    });
    action.setCallback(this, function(response) {
        var state = response.getState();
        if (state === "SUCCESS") {
            component.set("v.showViewForm", true);
            component.set("v.records", response.getReturnValue());
        }

    });
    $A.enqueueAction(action);
}

Here's my screen shots

After submitting:

After refreshing:

Upto my knowledge when we are rebuilding the dom using aura:if it should refresh.

Did i missed anything here (or) Is there any other alternative approaches to refresh the record view form.

I tried with lightning:recordForm as well.