Typo at S.72(1)(b) MHA 1983

I’m sure I’m not the only one that’s noticed the minor grammatical error in s.72(1)(b)(ii):

that it is necessary for the health of safety of the patient or for the protection of other persons that he should receive such treatment; or

I do wonder whether this is a typo on the Legislation.gov website or the original bill. Does anyone in London fancy a stroll down to the Parliamentary Archives to satisfy this curiosity?