this was removed in https://gitlab.gnome.org/GNOME/libxml2/-/commit/ce76ebfd1312459951d555ad9d87fb9a89eede55
--
diff --git a/src/raptor_libxml.c b/src/raptor_libxml.c
index 538c2c8..f516021 100644
--- a/src/raptor_libxml.c
+++ b/src/raptor_libxml.c
@@ -253,8 +253,8 @@ raptor_libxml_getEntity(void* user_data, const xmlChar *name)
      */
 
     /* Mark this entity as having been checked - never do this again */
-    if(!ret->checked)
-      ret->checked = 1;
+    // if(!ret->checked)
+    //   ret->checked = 1;
 #endif
   }