gems 0.8.11

When installing nitro I am asked twice about a dependency for "glue", and 
then see two messages of successful "glue" gem install.

Not sure why it would be doing this twice.

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C:\>gem install nitro
Attempting local installation of 'nitro'
Local gem file not found: nitro*.gem
Attempting remote installation of 'nitro'
Updating Gem source index for: http://gems.rubyforge.org
Install required dependency og? [Yn]  y
Install required dependency glue? [Yn]  y
Install required dependency facets? [Yn]  y
Install required dependency cmdparse? [Yn]  y
Install required dependency gen? [Yn]  y
Install required dependency glue? [Yn]  y
Successfully installed nitro-0.24.0
Successfully installed og-0.24.0
Successfully installed glue-0.24.0
Successfully installed facets-2005.10.15
Successfully installed cmdparse-2.0.0
Successfully installed gen-0.24.0
Successfully installed glue-0.24.0
Installing RDoc documentation for cmdparse-2.0.0...