How to expand by default for collapsible multifield when click Add new multifield?
My component in AEM 6.5 is using collapsible in multifield

But when I click the Add button, the newly added multifield is collapsed by default, but I want it to be expand by default like below:

This is my code, I have added the code <collapsed="{Boolean}false"> in collapsible, but is not working. Anyone can help?
<faresheetmultifield
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/form/multifield"
composite="{Boolean}true"
fieldLabel="Fare Sheets">
<field
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/container"
name="./resourcesMultifield">
<items jcr:primaryType="nt:unstructured">
<layout
jcr:primaryType="nt:unstructured"
jcr:title="Faresheets detail field to expand"
sling:resourceType="granite/ui/components/foundation/layouts/collapsible"
collapsed="{Boolean}false">
<items jcr:primaryType="nt:unstructured">
<well
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/foundation/container">
<layout
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/foundation/layouts/well"/>
<items jcr:primaryType="nt:unstructured">
<documenttitle
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/form/textfield"
fieldDescription="Entering Heading Description"
fieldLabel="Fare Sheets Title"
name="./documentTitle"
required="true"/>
<creationdate
jcr:primaryType="nt:unstructured"
sling:resourceType="/libs/granite/ui/components/coral/foundation/form/datepicker"
displayedFormat="DD-MM-YYYY"
emptyText="Date/Time"
fieldDescription="Enter the creation date of the document in format DD-MM-YYYY (Recommended Maximum Length : 10 characters)"
fieldLabel="Creation Date"
name="./creationDate"
required="true"
type="date"/>
<documentpath
jcr:primaryType="nt:unstructured"
sling:resourceType="granite/ui/components/coral/foundation/form/pathfield"
fieldDescription="Browse document"
fieldLabel="Document Link"
name="./documentPath"
required="true"
rootPath="/content/dam/agent360"/>
</items>
</well>
</items>
</layout>
</items>
</field>
</faresheetmultifield>