Fech data from mam when all history gets displayed

Fetch from mam without displaying when all mam messages get received
display new messages from db.
Unstable, initial mam doesn't get displayed unless we start scrolling.

src/ui/window.c

@@ -602,8 +602,14 @@ win_page_up(ProfWin* window)
 
     if (*page_start == -page_space && prefs_get_boolean(PREF_MAM) && window->type == WIN_CHAT) {
         ProfChatWin* chatwin = (ProfChatWin*) window;
-        chatwin_old_history(chatwin);
+        if (!chatwin_old_history(chatwin)) {
+            cons_show("Fetched mam");
+            iq_mam_request_older(chatwin);
+        } else {
+            cons_show("Showed history");
+        }
     }
+
     // went past beginning, show first page
     if (*page_start < 0)
         *page_start = 0;