oops: fix newly broken html tooltip #2050

Job	Run time
Static analysis / pylint (ubuntu-latest)	2m 23s
Pytest / Pytest (3.13, ubuntu-latest)	7m 56s
Pytest / Pytest (3.12, ubuntu-latest)	8m 16s
Pytest / Pytest (3.13, windows-latest)	12m 44s
Pytest / Pytest (3.12, windows-latest)	11m 58s
	43m 17s

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