[geary/mjog/invert-folder-class-hierarchy: 60/72] ConversationListStore: Handle incomplete email errors loading previews

[Michael Gratton <mjog src gnome org>]

commit ff01056dbaeb1e595dd1d84023cc69bbef781b7a
Author: Michael Gratton <mike vee net>
Date:   Sun Feb 28 19:53:03 2021 +1100

    ConversationListStore: Handle incomplete email errors loading previews
    
    Allow partial email to be loaded, remove any from the results that
    don't satisfy preview fields.

 src/client/conversation-list/conversation-list-store.vala | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/client/conversation-list/conversation-list-store.vala 
b/src/client/conversation-list/conversation-list-store.vala
index 3014b1d7d..b7135d4bc 100644
--- a/src/client/conversation-list/conversation-list-store.vala
+++ b/src/client/conversation-list/conversation-list-store.vala
@@ -201,11 +201,14 @@ public class ConversationListStore : Gtk.ListStore {
         Gee.Collection<Geary.Email>? emails = null;
         try {
             emails = yield email_store.get_multiple_email_by_id(
-                emails_needing_previews,
+                ids,
                 WITH_PREVIEW_FIELDS,
-                NONE,
+                INCLUDING_PARTIAL,
                 cancellable
             );
+            emails = Geary.traverse(emails).filter(
+                e => WITH_PREVIEW_FIELDS in e.fields
+            ).to_linked_list();
         } catch (GLib.IOError.CANCELLED err) {
             // All good
         } catch (Geary.EngineError.NOT_FOUND err) {