THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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No public interfaces will be impacted but the config TOPOLOGY_OPTIMIZATION_CONFIG will be used to enable or disable this optimization along with the other ones that it already controls. This introduces backwards compatibility issues. However, this is the case with any optimization happening under the umbrella of this config and the decision has been that users who have this config turned on should be prepared to build new topologies when upgrading. Another way to go about this is to introduce a config per optimization.
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