Fix/issue 915 client session group #1890

Job	Run time
checks / readme-snippets	12s
checks / pre-commit	18s
checks / test (3.10, lowest-direct, windows-latest)	2m 42s
checks / test (3.10, locked, ubuntu-latest)	55s
checks / test (3.11, lowest-direct, ubuntu-latest)	54s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 0s
checks / test (3.10, locked, windows-latest)	2m 30s
checks / test (3.12, lowest-direct, windows-latest)	3m 58s
checks / test (3.12, locked, windows-latest)	3m 43s
checks / test (3.12, lowest-direct, ubuntu-latest)	55s
checks / test (3.12, locked, ubuntu-latest)	54s
checks / test (3.11, locked, windows-latest)	2m 37s
checks / test (3.11, locked, ubuntu-latest)	49s
checks / test (3.11, lowest-direct, windows-latest)	3m 1s
checks / test (3.13, locked, windows-latest)	2m 41s
checks / test (3.13, lowest-direct, ubuntu-latest)	53s
checks / test (3.13, locked, ubuntu-latest)	48s
checks / test (3.14, locked, windows-latest)	3m 22s
checks / test (3.13, lowest-direct, windows-latest)	2m 42s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 17s
checks / test (3.14, lowest-direct, windows-latest)	2m 43s
checks / test (3.14, locked, ubuntu-latest)	2m 16s
all-green	4s
	41m 14s

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