Clicking "View Guide" from step edit on unsaved step crashes the app

[marczych]

1. Add a new step to a guide.
2. Without saving the step, click the book icon to view the guide.
3. Crash!

07-22 16:11:26.453  11074-11074/com.dozuki.ifixit E/AndroidRuntime: FATAL EXCEPTION: main
        java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
        at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
        at java.util.ArrayList.get(ArrayList.java:304)
        at com.dozuki.ifixit.model.guide.Guide.getStep(Guide.java:115)
        at com.dozuki.ifixit.ui.guide.create.StepEditActivity.navigateToStepView(StepEditActivity.java:745)
        at com.dozuki.ifixit.ui.guide.create.StepEditActivity.finishEdit(StepEditActivity.java:792)
        at com.dozuki.ifixit.ui.guide.create.StepEditActivity.onOptionsItemSelected(StepEditActivity.java:498)
        at android.support.v4.app.Watson.onMenuItemSelected(Watson.java:118)
        at com.actionbarsherlock.ActionBarSherlock.callbackOptionsItemSelected(ActionBarSherlock.java:603)
        at com.actionbarsherlock.internal.ActionBarSherlockNative.dispatchOptionsItemSelected(ActionBarSherlockNative.java:93)
        at com.actionbarsherlock.app.SherlockFragmentActivity.onMenuItemSelected(SherlockFragmentActivity.java:205)
        at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:980)
        at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:735)
        at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:149)
        at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:874)
        at com.android.internal.view.menu.ActionMenuView.invokeItem(ActionMenuView.java:547)
        at com.android.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:115)
        at android.view.View.performClick(View.java:4204)
        at android.view.View$PerformClick.run(View.java:17355)
        at android.os.Handler.handleCallback(Handler.java:725)
        at android.os.Handler.dispatchMessage(Handler.java:92)
        at android.os.Looper.loop(Looper.java:137)
        at android.app.ActivityThread.main(ActivityThread.java:5041)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:511)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
        at dalvik.system.NativeStart.main(Native Method)