Note

Low Risk
Very small, targeted change to token filtering logic with added tests; main risk is accidentally allowing similarly formatted asset IDs, but scope is limited to one hardcoded address.

Overview
Prevents the TokenDataSource EVM ERC-20 spam filter (minimum occurrences) from incorrectly hiding the specific mUSD token by adding an explicit allowlist exception for its contract address.

Adds coverage to ensure mUSD is retained even when occurrences is low or missing, and documents the fix in the assets-controller changelog.

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