rely in setAttribute behaviour inside setCustomElementData

src/shared/dom.js

@@ -101,10 +101,8 @@ export function setAttributes(node, attributes) {
 export function setCustomElementData(node, prop, value) {
 	if (prop in node) {
 		node[prop] = value;
-	} else if (value != null) {
-		setAttribute(node, prop, value);
 	} else {
-		node.removeAttribute(prop);
+		setAttribute(node, prop, value);
 	}
 }