unexpected precompile warning in 1.7.0-beta2

[Roger-luo]

This is originally reported by @fonsp here: Roger-luo/Configurations.jl#45

while trying to debug it I find this seems to be a regression, since I cannot reproduce it in previous julia versions.

[Roger-luo]

seems this happens on DocumenterTools as well

julia> using GarishPrint, DocumenterTools
[ Info: Precompiling DocumenterTools [35a29f4d-8980-5a13-9543-d66fff28ecb8]
WARNING: Method definition Any(Any...) in module DOM at /home/roger/.julia/packages/Documenter/f5jts/src/Utilities/DOM.jl:191 overwritten on the same line (check for duplicate calls to `include`).
  ** incremental compilation may be fatally broken for this module **

WARNING: Method definition Any(Any...) in module DOM at /home/roger/.julia/packages/Documenter/f5jts/src/Utilities/DOM.jl:192 overwritten on the same line (check for duplicate calls to `include`).
  ** incremental compilation may be fatally broken for this module **

[fredrikekre]

#41277

[jaakkor2]

I see this with using JSON3 and using NearestNeighbors when I have removed .julia\compiled\v1.7-folder completely. After the first using, warnings do not show up anymore.