Hashie shallow copy

gistfile1.txt

[1] pry(main)> class MyHash < Hash
[1] pry(main)*   include Hashie::Extensions::MergeInitializer
[1] pry(main)*   include Hashie::Extensions::IndifferentAccess
[1] pry(main)* end
=> MyHash
[2] pry(main)> h={a: {b: 1}}
=> {:a=>{:b=>1}}
[3] pry(main)> h
=> {:a=>{:b=>1}}
[4] pry(main)> MyHash.new(h)
=> {"a"=>{"b"=>1}}
[5] pry(main)> h
=> {:a=>{"b"=>1}}
[6] pry(main)> h={a: {b: 1}}
=> {:a=>{:b=>1}}
[7] pry(main)> MyHash.new(h.deep_dup)
=> {"a"=>{"b"=>1}}
[8] pry(main)> h
=> {:a=>{:b=>1}}

👀 ttps://github.com/hashie/hashie/pull/195/