fix TOP command

Signed-off-by: AGentooCat <agentoocat@mail.i2p>

src/mail.c

@@ -690,7 +690,7 @@ pullmailfail:
 	CLEARSQL(cached_gethead);
 	CLEARSQL(cached_getline);
 	freemail(mail);
-	return -ret;
+	return ret == SQLITE_OK ? -SQLITE_INTERNAL : -ret;
     }
 
     ret = sqlite3_step(cached_getmail);
@@ -758,6 +758,7 @@ pullmailfail:
 		mail->size += 3;
 		mail->line_count++;
 	    }
+	    ret = SQLITE_DONE;
 	    break;
 	}
     }