For Ruby Language coding, how do I revert a hash back to its default settings?

For example: I created a hash with the keys and values

h = {1 => "one", 2 => "two", 3 => "three"}

And because I wanted to add another value with the same key as "1", I used the hash.compare_by_identity code so that my hash compares by object id instead so that I get

{1 => "one", 2 => "two", 3 => "three", 1 => "uno"}

but instead my hash after h.compare_by_identity is continuously reading object id instead of keys after one .each do || iteration, and now I have

{1 => "one", 2 => "two", 3 => "three", 1 => "uno", 1 => "one", 2 => "two", 3 => "three"}

I want to change my hash back to its default since I didn't want to get the repeat 1 => "one", 2 => "two", 3 => "three", so how do I go back to the default hash that compares by the key itself instead of the key's object id?