fix: fix keyexpr canonization unsafe behavior #7488

Job	Run time
Typos Check	9s
Lints and doc tests on ubuntu-latest	7m 58s
Unit tests on ubuntu-latest	19m 36s
Lints and doc tests on windows-latest	11m 42s
Unit tests on windows-latest	37m 55s
Lints and doc tests on macos-13	12m 6s
Unit tests on macos-13	10m 57s
Lints and doc tests on macos-14	5m 41s
Unit tests on macos-14	10m 14s
Memory leak checks	2m 40s
CI status checks	1s
	1h 58m 59s

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