Clicking "Edit" on a host that was provisioned as a virtual machine (with Libvirt 0.9.8 as a compute resource) results in the following "Oops":

NoMethodError
undefined method `[]' for nil:NilClass
app/helpers/lookup_keys_helper.rb:21:in `new_child_fields_template'
app/helpers/lookup_keys_helper.rb:20:in `new_child_fields_template'
app/views/compute_resources/vms/form/_libvirt.html.erb:20:in `_app_views_compute_resources_vms_form__libvirt_html_erb___2047140852_70269412877280_7325356'
app/views/hosts/_compute.html.erb:3:in `_app_views_hosts__compute_html_erb__883533051_70269412924000_6718156'
app/views/hosts/_compute.html.erb:1:in `_app_views_hosts__compute_html_erb__883533051_70269412924000_6718156'
app/views/hosts/_unattended.html.erb:6:in `_app_views_hosts__unattended_html_erb___1144187453_70269412982880_319468'
app/views/hosts/_form.html.erb:52:in `_app_views_hosts__form_html_erb___241456516_70269412627960_1228030'
app/helpers/layout_helper.rb:130:in `form_for'
app/views/hosts/_form.html.erb:3:in `_app_views_hosts__form_html_erb___241456516_70269412627960_1228030'
app/views/hosts/edit.html.erb:7:in `_app_views_hosts_edit_html_erb___1445452589_70269412663100_0'

This is with Foreman 0.5-nightly-ba71c565 on Ubuntu 12.04. Libvirt is 0.9.8.