fix: surface stateful HTTP session crash cause #2400

Job	Run time
checks / pre-commit	37s
checks / readme-snippets	11s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 9s
checks / test (3.10, locked, ubuntu-latest)	1m 2s
checks / test (3.10, lowest-direct, windows-latest)	2m 37s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 3s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.10, locked, windows-latest)	2m 54s
checks / test (3.13, locked, ubuntu-latest)	57s
checks / test (3.11, locked, ubuntu-latest)	59s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 27s
checks / test (3.12, locked, windows-latest)	3m 35s
checks / test (3.11, locked, windows-latest)	2m 40s
checks / test (3.14, locked, windows-latest)	3m 29s
checks / test (3.14, lowest-direct, windows-latest)	2m 58s
checks / test (3.14, locked, ubuntu-latest)	2m 31s
checks / test (3.13, lowest-direct, windows-latest)	3m 0s
checks / test (3.13, locked, windows-latest)	2m 3s
checks / test (3.12, lowest-direct, windows-latest)	3m 48s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.12, locked, ubuntu-latest)	1m 8s
checks / test (3.11, lowest-direct, windows-latest)	2m 14s
all-green	2s
	42m 41s

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