"defer-next-dev" label ignored; why?

@Book,

Updating my local checkout of blead this morning, I saw this commit:
```
commit d676f771e06c3e7fd4d32d61fafcdcb00999517d (HEAD -> blead, 
origin/blead, origin/HEAD)
Author:     Philippe Bruhat (BooK) <[email protected]>
AuthorDate: Fri Apr 17 11:23:01 2026 +0200
Commit:     Philippe Bruhat (BooK) <[email protected]>
CommitDate: Fri Apr 17 11:23:01 2026 +0200

     update JSON::PP from CPAN to 4.18

     4.18 2026-03-20
         - fix duplicate specification warning (GH#93, 88; Heiko Jansen++)
         - fix typo (GH#92, sobrado8086++; GH#96, Grinnz++)
         - fix decode_json prototype (reported by bdfoy++)
         - fix space_after (GH#89, haukex++)

     4.17_01 2023-07-29
         - fix a reentrant issue (experimental) (GH#61, 87)

     Co-authored-by: Eric Herman <[email protected]>
```
I was surprised to see this, because in 
https://github.com/Perl/perl5/pull/24331, where I had done the work 
needed to merge this module into blead, we agreed that it introduced 
changes in code behavior too late in the current dev cycle to risk that 
merging.  I self-assigned the ticket and marked it "defer-next-dev."  If 
you disagreed with that designation, you could have said so in that 
ticket before proceeding with d676f771e0.  Can you explain?