[core] Fixed checking the m_GroupOf is not NULL. #19

	name: cxx11

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	types: [opened, synchronize, reopened]
	jobs:
	build:
	name: ubuntu
	runs-on: ubuntu-20.04
	env:
	BUILD_WRAPPER_OUT_DIR: sonar-output # Directory where build-wrapper output will be placed
	steps:
	- uses: actions/checkout@v3
	- name: Install sonar-scanner and build-wrapper
	uses: sonarsource/sonarcloud-github-c-cpp@v2
	- name: configure
	run: \|
	mkdir _build && cd _build
	cmake ../ -DENABLE_STDCXX_SYNC=ON -DENABLE_ENCRYPTION=ON -DENABLE_UNITTESTS=ON -DENABLE_BONDING=ON -DENABLE_TESTING=ON -DENABLE_EXAMPLES=ON -DENABLE_CODE_COVERAGE=ON
	- name: build
	run: cd _build && build-wrapper-linux-x86-64 --out-dir ${{ env.BUILD_WRAPPER_OUT_DIR }} cmake --build .
	- name: test
	run: \|
	cd _build && ctest --extra-verbose
	- name: codecov
	run: \|
	source ./scripts/collect-gcov.sh
	bash <(curl -s https://codecov.io/bash)
	- name: Run SonarCloud Scan for C and C++
	if: ${{ !github.event.pull_request.head.repo.fork }}
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
	# Consult https://docs.sonarcloud.io/advanced-setup/ci-based-analysis/sonarscanner-cli/ for more information and options.
	run: sonar-scanner --define sonar.cfamily.build-wrapper-output=_build/"${{ env.BUILD_WRAPPER_OUT_DIR }}"

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