Only ignore input change event if the id is present

Author: koddsson

src/file-attachment-element.ts

@@ -140,8 +140,9 @@ function onChange(event: Event) {
   if (!(container instanceof FileAttachmentElement)) return
   const input = event.target
   if (!(input instanceof HTMLInputElement)) return
+
   const id = container.getAttribute('input')
-  if (!id || input.id !== id) return
+  if (id && input.id !== id) return
 
   const files = input.files
   if (!files || files.length === 0) return