diff --git a/openupgrade_scripts/scripts/project_todo/19.0.1.0/pre-migration.py b/openupgrade_scripts/scripts/project_todo/19.0.1.0/pre-migration.py
new file mode 100644
index 000000000000..84296f357ac7
--- /dev/null
+++ b/openupgrade_scripts/scripts/project_todo/19.0.1.0/pre-migration.py
@@ -0,0 +1,17 @@
+from openupgradelib import openupgrade
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    """Clear the 'to-do' action path before the module data reloads.
+
+    19.0 adds a unique ``ir.actions.path``. On a fresh install only the
+    act_window ``project_task_action_todo`` owns 'to-do'; during migration the
+    pre-existing server action also gets 'to-do' auto-populated, so when the
+    window action's view data reloads it trips the cross-table uniqueness
+    check. Null both here; the view data reload re-sets the window action.
+    """
+    for table in ("ir_act_window", "ir_act_server"):
+        openupgrade.logged_query(
+            env.cr, f"UPDATE {table} SET path = NULL WHERE path = 'to-do'"
+        )