Added zip warnings

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

@@ -102,6 +102,12 @@ public interface DaoAttachment {
             " AND (NOT (error IS :error) OR progress IS NOT NULL OR NOT (available IS 0))")
     void setError(long id, String error);
 
+    @Query("UPDATE attachment" +
+            " SET error = :error" +
+            " WHERE id = :id" +
+            " AND NOT (error IS :error)")
+    void setWarning(long id, String error);
+
     @Query("UPDATE attachment" +
             " SET type = :type" +
             " WHERE id = :id" +

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

@@ -3441,7 +3441,7 @@ public class MessageHelper {
                                 }
                         } catch (Throwable ex) {
                             Log.e(ex);
-                            db.attachment().setError(local.id, Log.formatThrowable(ex));
+                            db.attachment().setWarning(local.id, Log.formatThrowable(ex));
                         }
                     }
                 }