The method currently creates a new operation context (https://github.com/mongodb/mongo/blob/279ee64be148ce7bbba7a6414adca53e08dc72df/src/mongo/db/s/global_index/global_index_inserter.cpp#L84) that is not attached to the cancellation tokens used by the global index cloning service. The operation context is currently only used for waiting on a test-only failpoint.