Warning C4866: `compiler may not enforce left-to-right evaluation order for call to 'Json::Value::operator[]`

[MaikeR-TV]

Describe the bug
Updating jsoncpp from 1.9.6 to 1.9.7 introduces warning C4866: compiler may not enforce left-to-right evaluation order for call to 'Json::Value::operator[]' on MSVC.

To Reproduce
Treating warnings as errors.
Following code examples:

Json::StreamWriterBuilder writer;
writer.settings_["indentation"] = "";

std::string TokenName("Token");
myToken = jsonRoot[TokenName].asString();

(especially in a function where jsonRoot it const ref)

Expected behavior
With a minor version change, I don't expect big changes that introduce new warnings and require changes on consumer side.

Desktop:

• OS: Windows
• Ninja version 1.11.1

Additional context
While there are possibilities to use find(), or get() or myToken = jsonRoot[Json::StaticString(TokenName)].asString();, this requires many changes in our code base and we'd appreciate if the operator [] could be used as before.