CMakePresets.json : "inherits" key does not support multi-level inheritance

Bug QTCREATORBUG-28360 is now fixed, which allows for using the "inherits" key in CMakePreset.json. This is a great improvment. However, multi-level inheritance is not supported by Qt Creator, though it is by CMake command line tool (cmake --preset).

This CMakePreset.json file is not correctly parsed by Qt Creator:

{
"version": 3,
"configurePresets": [

{ "name": "grandfather", "hidden": true, "environment":\{ "MYVAR": "foo" }

},

{ "name": "father", "hidden": true, "inherits": "grandfather" }

,

{ "name": "child", "inherits": "father" }

]}

The environment variable "MYVAR" is set in the "father" preset, but not in the "child" preset.