lib/rack/response.rb in rack-3.0.8 vs lib/rack/response.rb in rack-3.0.9

@@ -326,9 +326,11 @@
             # The user supplied body was an array:
             @body = @body.compact
             @body.each do |part|
               @length += part.to_s.bytesize
             end
+
+            @buffered = true
           elsif @body.respond_to?(:each)
             # Turn the user supplied body into a buffered array:
             body = @body
             @body = Array.new