importing Base.PkId breaks precompilation

[jlapeyre]

julia> VERSION
v"1.7.2"

julia> import Pkg; Pkg.add("Example");
   Resolving package versions...
  No Changes to `~/.julia/environments/v1.7/Project.toml`
  No Changes to `~/.julia/environments/v1.7/Manifest.toml`

julia> import Base.PkgId;

julia> using Example
[ Info: Precompiling Example [7876af07-990d-54b4-ab0e-23690620f79a]
ERROR: UndefVarError: PkgId not defined

The example above does not trigger the bug on 1.8.0-DEV.1455 (2022-02-06)

[KristofferC]

Fixed by #42329

[jlapeyre]

I searched open issues. Neglected to search closed issues!