# HG changeset patch
# User wenzelm
# Date 1568288153 -7200
# Node ID 60b1eda998f35f515b87dd80cf9a2c18fae89a91
# Parent  8c7706b053c7a33fb42a8a45a3896d8b6d55b408
disallow accidental duplicates within the same session specification -- proper total match;

diff -r 8c7706b053c7 -r 60b1eda998f3 src/Pure/Thy/sessions.scala
--- a/src/Pure/Thy/sessions.scala	Thu Sep 12 13:33:09 2019 +0200
+++ b/src/Pure/Thy/sessions.scala	Thu Sep 12 13:35:53 2019 +0200
@@ -691,7 +691,7 @@
             val session = info.name
             val canonical_dir = dir.canonical_file
             dirs.get(canonical_dir) match {
-              case Some(session1) if session1 != session =>
+              case Some(session1) =>
                 val info1 = info_graph.get_node(session1)
                 error("Duplicate use of directory " + dir +
                   "\n  for session " + quote(session1) + Position.here(info1.pos) +