Fix form not populated with XML if minOccurs=0

Author: groupmsl

js/html-populators.xsl

@@ -36,7 +36,7 @@
 								//check for input elements existing to handle empty elements
 								&& o.previousElementSibling.previousElementSibling.querySelector("input, textarea, select")
 								//check if element has been populated with data from an xml document
-								&& !o.previousElementSibling.previousElementSibling.querySelector("input, textarea, select").hasAttribute("data-xsd2html2xml-filled")) {
+								&& Array.from(o.previousElementSibling.previousElementSibling.querySelectorAll("input, textarea, select")).filter(function(el) {return el.hasAttribute("data-xsd2html2xml-filled")}).length == 0) {
 								clickRemoveButton(
 									o.parentElement.children[0].querySelector("legend > button.remove, span > button.remove")
 								);