Fixed imports with scoped blocks
diff --git a/CHANGES b/CHANGES
index 87f705c..b06192c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -15,6 +15,8 @@
   integers instead of longs)
 - groupby filter now supports dotted notation for grouping by attributes
   of attributes.
+- scoped blocks not properly treat toplevel assignments and imports.
+  Previously an import suddenly "disappeared" in a scoped block.
 
 Version 2.5.5
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