Allow _delta for filter elements#73

rudnerbjoern merged 1 commit intomainrudnerbjoern/iTop-schema:mainfrom

71-tag-filter-of-an-attributeexternalkey-may-be-redefinedrudnerbjoern/iTop-schema:71-tag-filter-of-an-attributeexternalkey-may-be-redefinedCopy head branch name to clipboard