Incorrect diffs count in the report table

The column "Diffs" shows either incorrect or misleading number of differences. E. g. for this run https://app.warp.dev/block/VfjdKiz6Ofrv87pJpFPVHG it is "8" although the difference in html-report is just a single space added.

The config used (config_samples/zksync_mainnet_config_L1.json at the moment):

{
    "contracts": {
        "0xFf7F4d05e3247374e86A3f7231A2Ed1CA63647F2": "OssifiableProxy",
        "0x06185d60eD72a91D1367Eb0733B9d20AE7336D3B": "L1Executor",
        "0x41527B2d03844dB6b0945f25702cB958b6d55989": "OssifiableProxy",
        "0x9a810469F4a451Ebb7ef53672142053b4971587c": "L1ERC20Bridge"
    },
    "explorer_hostname": "api.etherscan.io",
    "github_repo": {
        "url": "https://github.com/txfusion/lido-l2",
        "commit": "fa6a77e694a34dc6f03d57bb8c934941e554ac9d",
        "relative_root": "zksync"
    },
    "dependencies": {
        "@openzeppelin/contracts": {
            "url": "https://github.com/OpenZeppelin/openzeppelin-contracts",
            "commit": "d4fb3a89f9d0a39c7ee6f2601d33ffbf30085322",
            "relative_root": "contracts"
        },
        "@openzeppelin/contracts-upgradeable": {
            "url": "https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable",
            "commit": "f6febd79e2a3a17e26969dd0d450c6ebd64bf459",
            "relative_root": "contracts"
        },
        "@matterlabs/zksync-contracts/l1/contracts": {
            "url": "https://github.com/matter-labs/era-contracts",
            "commit": "3a4506522aaef81485d8abb96f5a6394bd2ba69e",
            "relative_root": "ethereum/contracts"
        }
    }
}

Reproduce the report using config_samples/zksync_mainnet_config_L1.json and compare the table's “Diffs” value with the single-space change shown in the HTML report for the linked run. Trace how the report table calculates this count and verify that the displayed number reflects the actual differences; the issue does not name a source file or test to run.