How can avoid adding null to missing select keys?

[ldosdevel01-max]

title: test
---
a:
  b: one
c:
  d:
    - 1
    - 2
---
a:
  b: two
c:
  d:
    - 3
    - 4

yq -i e '(select(.a.b == "one") | .c.d) = [1,2,3]' ~/1.yaml

results:

title: test
a:
  b: null
---
a:
  b: one
c:
  d:
    - 1
    - 2
    - 3
---
a:
  b: two
c:
  d:
    - 3
    - 4

expected (without the added null value of missing select key):

title: test
---
a:
  b: one
c:
  d:
    - 1
    - 2
    - 3
---
a:
  b: two
c:
  d:
    - 3
    - 4

[ldosdevel01-max]

This would work (the missing search key is not added with null value to index 0):

yq -i e '(select(documentIndex == 1) | .c.d) = [1,2,3]' ~/1.yaml

but the document index is not known, only the search-key value is known.
Could I use yq to query the document index?