Fix/issue 915 client session group #2020

Job	Run time
checks / readme-snippets	16s
checks / pre-commit	32s
checks / test (3.12, lowest-direct, windows-latest)	3m 8s
checks / test (3.12, locked, windows-latest)	3m 37s
checks / test (3.12, lowest-direct, ubuntu-latest)	59s
checks / test (3.11, locked, ubuntu-latest)	54s
checks / test (3.11, lowest-direct, windows-latest)	2m 54s
checks / test (3.10, lowest-direct, windows-latest)	3m 6s
checks / test (3.10, locked, ubuntu-latest)	53s
checks / test (3.10, locked, windows-latest)	2m 20s
checks / test (3.12, locked, ubuntu-latest)	1m 4s
checks / test (3.13, lowest-direct, ubuntu-latest)	55s
checks / test (3.11, locked, windows-latest)	2m 44s
checks / test (3.13, locked, windows-latest)	2m 32s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.11, lowest-direct, ubuntu-latest)	51s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 21s
checks / test (3.14, lowest-direct, windows-latest)	2m 29s
checks / test (3.14, locked, ubuntu-latest)	2m 13s
checks / test (3.13, locked, ubuntu-latest)	48s
checks / test (3.14, locked, windows-latest)	3m 26s
checks / test (3.13, lowest-direct, windows-latest)	3m 7s
all-green	5s
	41m 17s

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