Cleanup failed seen and flag

app/src/main/java/eu/faircode/email/Core.java

@@ -517,6 +517,7 @@ class Core {
                             // Delete: NO [CANNOT] STORE It's not possible to perform specified operation
                             // Delete: NO [UNAVAILABLE] EXPUNGE Backend error
                             // Delete: NO mailbox selected READ-ONLY
+                            // Flags: NO mailbox selected READ-ONLY
                             // Keyword: NO STORE completed
                             // Search: BAD command syntax error
 

app/src/main/java/eu/faircode/email/EntityOperation.java

@@ -464,9 +464,22 @@ public class EntityOperation {
 
         EntityLog.log(context, "Cleanup op=" + id + "/" + name + " folder=" + folder + " message=" + message);
 
-        if (message != null)
+        if (message != null) {
             db.message().setMessageUiHide(message, false);
 
+            if (EntityOperation.SEEN.equals(name)) {
+                EntityMessage m = db.message().getMessage(message);
+                if (m != null)
+                    db.message().setMessageUiSeen(m.id, m.seen);
+            }
+
+            if (EntityOperation.FLAG.equals(name)) {
+                EntityMessage m = db.message().getMessage(message);
+                if (m != null)
+                    db.message().setMessageUiFlagged(m.id, m.flagged, m.color);
+            }
+        }
+
         if (EntityOperation.MOVE.equals(name) ||
                 EntityOperation.ADD.equals(name) ||
                 EntityOperation.RAW.equals(name))