Allow to start OMEMO in MUC

src/command/cmd_funcs.c

@@ -7973,6 +7973,14 @@ cmd_omemo_start(ProfWin *window, const char *const command, gchar **args)
             omemo_start_session(chatwin->barejid);
             chatwin->is_omemo = TRUE;
         } else if (window->type == WIN_MUC) {
+            ProfMucWin *mucwin = (ProfMucWin*)window;
+            assert(mucwin->memcheck == PROFMUCWIN_MEMCHECK);
+
+            /* TODO: Check room is configured correctly, no anonymous and access to
+             * full jid */
+            omemo_start_muc_sessions(mucwin->barejid);
+
+            mucwin->is_omemo = TRUE;
         } else {
             win_println(window, THEME_DEFAULT, '-', "You must be in a regular chat window to start an OMEMO session.");
             return TRUE;