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PortGroupList::gather() first adds UserBundle ports to `system->add_bundle (*i, allow_dups);` That can include ports that are already associated with the current bundle. The port in this case has the Bundle's name. Those ports are later removed in BundleEditorMatrix::setup_ports `_ports[OTHER].remove_bundle (_bundle);` However we do need to show physical ports by their name, even if they're identical to the already associated bundle to allow disassociating them.
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