Clone keyBindings by default

spec/spec-helper.coffee

@@ -23,7 +23,7 @@ atom.themes.requireStylesheet '../static/jasmine'
 fixturePackagesPath = path.resolve(__dirname, './fixtures/packages')
 atom.packages.packageDirPaths.unshift(fixturePackagesPath)
 atom.keymap.loadBundledKeymaps()
-keyBindingsToRestore = _.clone(atom.keymap.allBindings())
+keyBindingsToRestore = atom.keymap.allBindings()
 
 $(window).on 'core:close', -> window.close()
 $(window).on 'unload', ->

src/keymap.coffee

@@ -93,7 +93,7 @@ class Keymap
   # object contains the following keys `source`, `selector`, `command`,
   # `keystroke`, `index`, `specificity`.
   allBindings: ->
-    @keyBindings
+    _.clone(@keyBindings)
 
   bindingsForKeystrokeMatchingElement: (keystroke, element) ->
     keyBindings = @bindingsForKeystroke(keystroke)