Error while opening proposal component on admin page

[fblupi]

I installed the module with the default configuration and found an error while accessing the proposal component page on the admin page. The error backtrace is the one below:

ActionView::Template::Error (nil can't be converted to a Time value):
       <% elsif proposal.accepted? || proposal.rejected? %>
       <div class="help-text-overdue text-success">
         <%= t("decidim.reporting_proposals.admin.resolution_time") %>:
         <%= time_elapsed_to_answer(proposal) %>
       </div>
     <% end %>
   </div>

I analyzed it and found out the component has a rejected proposal, but that proposal doesn't have a value for the answered_at column used in the time_elapsed_to_answer method. So it's causing this error as you call the distance_of_time_in_words with a nil value.

Maybe we should change from:

<% elsif proposal.accepted? || proposal.rejected? %>

to:

<% elsif (proposal.accepted? || proposal.rejected?) && proposal.answered_at.present? %>

Or use another attribute, as answered_at could be nil on rejected proposals.