Cannot get a String from an empty array
org.ametys.plugins.repository.AmetysRepositoryException: Cannot get a String from an empty array
    at org.ametys.plugins.repository.metadata.jcr.JCRCompositeMetadata._getString(JCRCompositeMetadata.java:362)
    at org.ametys.plugins.repository.metadata.jcr.JCRCompositeMetadata.getString(JCRCompositeMetadata.java:343)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataRemoval(EditContentFunction.java:2076)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeRepeaterInReplaceMode(EditContentFunction.java:1962)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeRepeater(EditContentFunction.java:1806)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeCompositeMetadata(EditContentFunction.java:1767)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadata(EditContentFunction.java:1693)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataSetElement(EditContentFunction.java:588)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataSetElement(EditContentFunction.java:593)
    at org.ametys.cms.workflow.EditContentFunction._synchronizeMetadataSetElement(EditContentFunction.java:593)
    at org.ametys.cms.workflow.EditContentFunction._bindAndValidateContent(EditContentFunction.java:488)