reinstall rvm_system_ruby

[cloud-hot]

If i first install the blow dvm
rvm_system_ruby {
'ree-1.8.7-2012.02':
ensure => 'present',
require => Class['rvm::system'],
default_use => true;
}
and then i want to install ruby-other-version, and if i exec again puppet command it will report the blow error:
puppet apply --debug --modulepath '/tmp/vagrant-puppet-1/modules-0' --manifestdir /tmp/vagrant-puppet-1/manifests --detailed-exitcodes /tmp/vagrant-puppet-1/manifests/hotspot-precise64.pp || [ $? -eq 2 ]

Stdout from the command:

Stderr from the command:

stdin: is not a tty
/opt/vagrant_ruby/lib/ruby/site_ruby/1.8/rubygems.rb:900:in report_activate_error': Could not find RubyGem puppet (>= 0) (Gem::LoadError) from /opt/vagrant_ruby/lib/ruby/site_ruby/1.8/rubygems.rb:248:inactivate'
from /opt/vagrant_ruby/lib/ruby/site_ruby/1.8/rubygems.rb:1276:in `gem'
from /opt/vagrant_ruby/bin/puppet:18

The root cause is the current $PATH already have the ree-1.8.7 execution env, so its ruby version will be conflict with puppet ruby version.