lib-index: Fixed mail_index_lookup_ext_full()'s map_r with transaction-view.

diff --git a/src/lib-index/mail-index-transaction-view.c b/src/lib-index/mail-index-transaction-view.c
index f64e6cf77d6193e8cd3635cea6b507349e54882c..7c01904b111ecb3b6f10dbbb84999cae67db1938 100644 (file)
--- a/src/lib-index/mail-index-transaction-view.c
+++ b/src/lib-index/mail-index-transaction-view.c
@@ -411,6 +411,22 @@ tview_lookup_ext_update(struct mail_index_view_transaction *tview, uint32_t seq,
                tview->lookup_map =
                        mail_index_map_clone(tview->view.index->map);
        }
+       if (!mail_index_map_get_ext_idx(tview->lookup_map, ext_id, &map_ext_idx)) {
+               /* extension doesn't yet exist in the map. add it there with
+                  the preliminary information (mainly its size) so if caller
+                  looks it up, it's going to be found. */
+               const struct mail_index_registered_ext *rext =
+                       array_idx(&tview->view.index->extensions, ext_id);
+               struct mail_index_ext_header ext_hdr;
+
+               memset(&ext_hdr, 0, sizeof(ext_hdr));
+               ext_hdr.hdr_size = rext->hdr_size;
+               ext_hdr.record_size = ext_buf->arr.element_size - sizeof(uint32_t);
+               ext_hdr.record_align = rext->record_align;
+
+               mail_index_map_register_ext(tview->lookup_map, rext->name,
+                                           (uint32_t)-1, &ext_hdr);
+       }
 
        data = array_idx(ext_buf, idx);
        *map_r = tview->lookup_map;