diff -r 4659e87c3795 -r 9250f944ec0f src/Tools/jEdit/src/jedit_editor.scala
--- a/src/Tools/jEdit/src/jedit_editor.scala	Sat Mar 11 15:36:47 2017 +0100
+++ b/src/Tools/jEdit/src/jedit_editor.scala	Sat Mar 11 16:22:12 2017 +0100
@@ -89,10 +89,7 @@
       case _ =>
         Document_Model.get(buffer) match {
           case Some(model) if !model.is_theory =>
-            snapshot.version.nodes.commands_loading(model.node_name) match {
-              case cmd :: _ => Some(cmd)
-              case Nil => None
-            }
+            snapshot.version.nodes.commands_loading(model.node_name).headOption
           case _ => None
         }
     }