Fix/issue 915 client session group #2017

Job	Run time
checks / readme-snippets	14s
checks / pre-commit	33s
checks / test (3.11, lowest-direct, ubuntu-latest)	53s
checks / test (3.11, lowest-direct, windows-latest)	3m 30s
checks / test (3.12, locked, windows-latest)	3m 27s
checks / test (3.13, lowest-direct, windows-latest)	3m 10s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.10, locked, ubuntu-latest)	54s
checks / test (3.10, lowest-direct, windows-latest)	2m 42s
checks / test (3.11, locked, windows-latest)	2m 52s
checks / test (3.11, locked, ubuntu-latest)	55s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 2s
checks / test (3.12, locked, ubuntu-latest)	56s
checks / test (3.10, locked, windows-latest)	2m 25s
checks / test (3.14, lowest-direct, windows-latest)	2m 36s
checks / test (3.12, lowest-direct, windows-latest)	3m 34s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.14, locked, windows-latest)	3m 56s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 25s
checks / test (3.13, locked, ubuntu-latest)	49s
checks / test (3.14, locked, ubuntu-latest)	2m 23s
checks / test (3.13, locked, windows-latest)	2m 20s
all-green	3s
	42m 39s

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