[Archivesspace_Users_Group] Suppressed record search bug

[Kevin Clair]

Hello,

We recently discovered an issue with searching for records that are suppressed in the staff interface. In our instance, administrative users are able to do known-item searches for suppressed records without incident; if a user without administrative permissions performs the same search, they get thrown an error with the following stack trace:

I, [2019-04-25T09:47:26.038804 #18125]  INFO -- : Completed 500 Internal Server Error in 1163ms
F, [2019-04-25T09:47:26.041948 #18125] FATAL -- :
F, [2019-04-25T09:47:26.042069 #18125] FATAL -- : ActionView::Template::Error (undefined method `[]' for nil:NilClass):
F, [2019-04-25T09:47:26.042263 #18125] FATAL -- :     1: <% ancestors = context_ancestor(result) %>
    2: <% if ancestors != nil && ancestors != [''] %>
    3:   <% ancestors.reverse.each_with_index do |ancestor, i| %>
    4:     <%= resolve_readonly_link_to((get_ancestor_title(ancestor).html_safe), ancestor) %>
    5:     <% if i < ancestors.length - 1 %>
    6:       <%= context_separator(result) %>
    7:     <% end %>
F, [2019-04-25T09:47:26.042340 #18125] FATAL -- :
F, [2019-04-25T09:47:26.042413 #18125] FATAL -- : app/helpers/search_helper.rb:198:in `get_ancestor_title'
app/views/search/_context.html.erb:4:in `block in _app_views_search__context_html_erb___234296763_2752'
app/views/search/_context.html.erb:3:in `_app_views_search__context_html_erb___234296763_2752'
app/helpers/application_helper.rb:289:in `render_aspace_partial'
app/views/search/_listing.html.erb:90:in `block in _app_views_search__listing_html_erb___1981573825_2748'
app/views/search/_listing.html.erb:52:in `_app_views_search__listing_html_erb___1981573825_2748'
app/helpers/application_helper.rb:289:in `render_aspace_partial'
app/views/search/_results.html.erb:23:in `_app_views_search__results_html_erb___1135689531_2744'
app/helpers/application_helper.rb:289:in `render_aspace_partial'
app/views/search/do_search.html.erb:16:in `_app_views_search_do_search_html_erb__585907251_2742'

Checking in to see if anyone else has noticed similar behavior and if there’s a bug report for this in Jira already. I did a quick search just now but couldn’t find anything that looked similar to this. thanks!  -k
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