when opening an objective-cpp file in a project that has OBJCXX enabled as a first-class cmake language, a header is shown: "Warning: This file is not part of any project [...]"

if objcxx however is not enabled as language, the file is properly parsed.

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observations:

• if objcxx is enabled, the c++ code model inspector in the attached project only has a C++ context
• if objcxx is not enabled, the c++ code model inspector shows two parse contexts (C++ and Obj-C+, where Obj-C+ self-identifies as CXX17 with ObjectiveC language extensions