Re: postgresql-9.5 updated to version 9.5.3-1.pgdg+1

It appears that only the source and i386 packages have been updated for 9.5
on precise amd64:

postgresql-9.5 | 9.5.3-1.pgdg+1 | sid-pgdg |
> amd64, i386, source
> postgresql-9.5 | 9.5.2-1.pgdg80+1 | jessie-pgdg |
> amd64, i386
> postgresql-9.5 | 9.5.3-1.pgdg80+1 | jessie-pgdg |
> source
> postgresql-9.5 | 9.5.3-1.pgdg70+1 | wheezy-pgdg |
> amd64, source
> postgresql-9.5 | 9.5.2-1.pgdg70+1 | wheezy-pgdg |
> i386
> postgresql-9.5 | 9.5.1-1.pgdg60+1 | squeeze-pgdg |
> amd64, i386, source
> postgresql-9.5 | 9.5.2-1.pgdg16.04+1 | xenial-pgdg |
> amd64
> postgresql-9.5 | 9.5.3-1.pgdg16.04+1 | xenial-pgdg |
> i386, source
> postgresql-9.5 | 9.5.2-1.pgdg15.10+1 | wily-pgdg |
> amd64
> postgresql-9.5 | 9.5.3-1.pgdg15.10+1 | wily-pgdg |
> i386, source
> postgresql-9.5 | 9.5.3-1.pgdg14.04+1 | trusty-pgdg |
> amd64, i386, source
> postgresql-9.5 | 9.5.2-1.pgdg12.4+1 | precise-pgdg |
> amd64
> postgresql-9.5 | 9.5.3-1.pgdg12.4+1 | precise-pgdg |
> i386, source

A number of other releases have packages in source and/or i386 but not
amd64. Was there a build failure that resulted in this non-uniform version
release?

Thanks,
Greg