From c2904121248431a2795621e9edd6b5e85b9c4d89 Mon Sep 17 00:00:00 2001
From: Dannon Baker <dannon.baker@gmail.com>
Date: Tue, 19 Mar 2024 23:49:18 -0400
Subject: [PATCH 1/3] Fix creation and association of new histories w/ brand
 new single/remote user

---
 lib/galaxy/webapps/base/webapp.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/galaxy/webapps/base/webapp.py b/lib/galaxy/webapps/base/webapp.py
index c3c1dd8bbcf2..824abb45cbeb 100644
--- a/lib/galaxy/webapps/base/webapp.py
+++ b/lib/galaxy/webapps/base/webapp.py
@@ -936,8 +936,8 @@ def get_or_create_default_history(self):
             if default_history:
                 history = default_history
                 self.set_history(history)
-        else:
-            history = self.new_history()
+            else:
+                history = self.new_history()
 
         return history
 

From 1fdbb121dcfe21027fd08d07b3e27736c3a50663 Mon Sep 17 00:00:00 2001
From: Marius van den Beek <m.vandenbeek@gmail.com>
Date: Wed, 20 Mar 2024 08:06:41 +0100
Subject: [PATCH 2/3] Create new history if user has no history AND for
 anonymous users

---
 lib/galaxy/webapps/base/webapp.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/galaxy/webapps/base/webapp.py b/lib/galaxy/webapps/base/webapp.py
index 824abb45cbeb..cd897139c4c7 100644
--- a/lib/galaxy/webapps/base/webapp.py
+++ b/lib/galaxy/webapps/base/webapp.py
@@ -938,6 +938,8 @@ def get_or_create_default_history(self):
                 self.set_history(history)
             else:
                 history = self.new_history()
+        else:
+            history = self.new_history()
 
         return history
 

From e3805c7bfb7b164b0b1c73aea0e391b919cbe4cb Mon Sep 17 00:00:00 2001
From: Dannon Baker <dannon.baker@gmail.com>
Date: Wed, 20 Mar 2024 07:58:42 -0400
Subject: [PATCH 3/3] Refactoring for clarity.

---
 lib/galaxy/webapps/base/webapp.py | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/lib/galaxy/webapps/base/webapp.py b/lib/galaxy/webapps/base/webapp.py
index cd897139c4c7..b9430a3774c0 100644
--- a/lib/galaxy/webapps/base/webapp.py
+++ b/lib/galaxy/webapps/base/webapp.py
@@ -912,36 +912,28 @@ def get_or_create_default_history(self):
         Gets or creates a default history and associates it with the current
         session.
         """
+
+        # Just return the current history if one exists and is not deleted.
         history = self.galaxy_session.current_history
         if history and not history.deleted:
             return history
 
+        # Look for an existing history that has the default name, is not
+        # deleted, and is empty. If this exists, we associate it with the
+        # current session and return it.
         user = self.galaxy_session.user
         if user:
-            # Look for default history that (a) has default name + is not deleted and
-            # (b) has no datasets. If suitable history found, use it; otherwise, create
-            # new history.
             stmt = select(self.app.model.History).filter_by(
                 user=user, name=self.app.model.History.default_name, deleted=False
             )
             unnamed_histories = self.sa_session.scalars(stmt)
-            default_history = None
             for history in unnamed_histories:
                 if history.empty:
-                    # Found suitable default history.
-                    default_history = history
-                    break
-
-            # Set or create history.
-            if default_history:
-                history = default_history
-                self.set_history(history)
-            else:
-                history = self.new_history()
-        else:
-            history = self.new_history()
+                    self.set_history(history)
+                    return history
 
-        return history
+        # No suitable history found, create a new one.
+        return self.new_history()
 
     def get_most_recent_history(self):
         """