and aggregate function returns incorrect result on union values in sequential runtime

[philrz]

$ echo '
  true::(bool|null)
  true::(bool|int64)
' | super -sam -c "and(this)" -
null

Details

Repro is with super commit f0f35f7.

Vector runtime works fine though.

$ super -version
Version: v0.3.0-91-gf0f35f760

$ echo '
  true::(bool|null)
  true::(bool|int64)
' | super -vam -c "and(this)" -
true

As does primitive bool in sequential runtime.

$ echo '
  true::bool
  true::bool
' | super -sam -c "and(this)" -
true