How to configure RubyMine to preserve Ruby 1.9.2 hash syntax when transforming code?
RubyMine can toggle block syntax between `do;end` and `{ }` block notation. For example, given the following code:

    [1, 2, 3].each do |i|
      puts i
    end

I can place the caret at `do` and press Option-Enter Enter (on the Mac) to convert this code snippet to:

    [1, 2, 3].each { |i| puts i }

Doing the same with the caret at the `{` performs the reverse transformation.

However when the code inside the block contains Ruby 1.9.2's new hash syntax, RubyMine destroys it during the transformation:

    # before
    [1, 2, 3].each { |i| some_func(param: i) }

    # after
    [1, 2, 3].each do |i|
      some_func(param : i)
    end

Note the space between `param` and the `:`.

I looked through the Ruby style options in RubyMine's preferences but wasn't able to find anything which controls colons. How can I prevent RubyMine from messing around with my colons?
How to configure RubyMine to preserve Ruby 1.9.2 hash syntax when transforming code?
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RubyMine can toggle block syntax between `do;end` and `{ }` block notation. For example, given the following code:

    [1, 2, 3].each do |i|
      puts i
    end

I can place the caret at `do` and press Option-Enter Enter (on the Mac) to convert this code snippet to:

    [1, 2, 3].each { |i| puts i }

Doing the same with the caret at the `{` performs the reverse transformation.

However when the code inside the block contains Ruby 1.9.2's new hash syntax, RubyMine destroys it during the transformation:

    # before
    [1, 2, 3].each { |i| some_func(param: i) }

    # after
    [1, 2, 3].each do |i|
      some_func(param : i)
    end

Note the space between `param` and the `:`.

I looked through the Ruby style options in RubyMine's preferences but wasn't able to find anything which controls colons. How can I prevent RubyMine from messing around with my colons?