jsza
diff --git a/‎addons/source-python/docs/source-python/source/developing/modules/core.update.rst‎
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diff --git a/‎addons/source-python/packages/source-python/core/update.py‎
Lines changed: 2 additions & 0 deletions b/‎addons/source-python/packages/source-python/core/update.py‎
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@@ -0,0 +1,7 @@
+core.update module
+===================
+
+.. automodule:: core.update
+    :members:
+    :undoc-members:
+    :show-inheritance:
@@ -78,6 +78,8 @@ def unpack_data():
 def update_data(timeout=3):
     """Download and unpack the latest data from the build server.
 
+    Old data gets deleted before unpacking.
+
     :param float timeout:
         Number of seconds that need to pass until a timeout occurs.
     """