BUG: stack with empty level list (#60826) #21769

Job	Run time
Pyodide build	22m 39s
Linux-32-bit	17m 56s
Linux-Musl	15m 53s
python-dev (macOS-14)	10m 45s
python-dev (macOS-13)	20m 17s
python-dev (ubuntu-22.04)	20m 22s
python-dev (windows-latest)	22m 24s
python-freethreading	22m 34s
macos-13 actions-310.yaml	45m 59s
macos-13 actions-311.yaml	29m 31s
macos-14 actions-310.yaml	20m 35s
macos-13 actions-312.yaml	52m 26s
macos-14 actions-311.yaml	21m 0s
macos-14 actions-312.yaml	21m 13s
windows-latest actions-311.yaml	40m 10s
windows-latest actions-312.yaml	52m 43s
windows-latest actions-310.yaml	39m 3s
Minimum Versions	24m 41s
Locale: zh_CN	28m 55s
Future infer strings (without pyarrow)	45m 39s
Locale: it_IT	28m 6s
Downstream Compat	6m 38s
Pyarrow Nightly	20m 32s
Numpy Dev	17m 28s
Future infer strings	55m 17s
Pypy	1m 41s
ubuntu-22.04 actions-310.yaml	53m 10s
ubuntu-22.04 actions-311.yaml	49m 54s
ubuntu-22.04 actions-312.yaml	57m 14s
ubuntu-24.04-arm actions-311.yaml	22m 48s
ubuntu-24.04-arm actions-312.yaml	26m 18s
ubuntu-24.04-arm actions-310.yaml	22m 51s
	15h 36m 42s

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