--- a/src/Pure/PIDE/headless.scala Fri Mar 27 12:28:55 2020 +0100
+++ b/src/Pure/PIDE/headless.scala Fri Mar 27 12:46:56 2020 +0100
@@ -585,7 +585,8 @@
session.phase_changed += session_phase
progress.echo("Starting session " + session_base_info.session + " ...")
- Isabelle_Process(session, options, session_base_info.sessions_structure,
+ val store = Sessions.store(options)
+ Isabelle_Process(session, options, session_base_info.sessions_structure, store,
logic = session_base_info.session, modes = print_mode)
session_error.join match {