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I have some pretty complex ModelBuilder tools I have developed that contain a lot of nested sub-models. These submodels are sometimes modified, such as in value lists or code blocks, but the tools using them don't update their behavior unless I delete the modified submodel from those tools, then copy it back in and reconnect everything. This can be particularly tedious for sub-models that have a lot of parameters.

Is there any way to tell a parent tool to automatically "refresh" its connections to sub-models it uses so that any changes in the sub-model are integrated into the parent model?

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