Unexpected behavior of "where ... not in" with empty slice

[AlanBreck]

I'm encountering an unexpected behavior when using not in with an empty slice in a where condition.

Non-empty slice:

{{- $pages := where site.RegularPages "Kind" "not in" (slice "section") -}}
{{ printf "#%v" $pages }} --> Pages(1)

Empty slice:

{{- $pages := where site.RegularPages "Kind" "not in" (slice) -}}
{{ printf "#%v" $pages }} --> Pages(0)

By contrast, I see an expected result when using the not and collections.In functions outside of a where condition:

{{ printf "%#v" (not (in $forbiddenFruits "pineapple")) }} --> true
{{ printf "%#v" (not (in $forbiddenFruits "apple")) }} --> false
{{ printf "%#v" (not (in slice "pineapple")) }} --> true

https://discourse.gohugo.io/t/where-not-in-with-empty-slice/54409

What version of Hugo are you using (hugo version)?

$ hugo version
hugo v0.145.0+extended+withdeploy darwin/arm64 BuildDate=2025-02-26T15:41:25Z VendorInfo=brew

Does this issue reproduce with the latest release?

Unsure