demux: ogg: fix old stream format reuse check

(cherry picked from commit 751ecf1c78191151e27f898bd58345744f35bead)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/demux/ogg.c

@@ -2063,8 +2063,8 @@ static void Ogg_CreateES( demux_t *p_demux )
                 p_stream->b_reinit = false;
                 p_stream->b_initializing = false;
                 p_stream->i_pre_skip = 0;
-                bool b_resetdecoder = Ogg_LogicalStreamResetEsFormat( p_demux, p_stream );
                 es_format_Copy( &p_stream->fmt_old, &p_old_stream->fmt );
+                bool b_resetdecoder = Ogg_LogicalStreamResetEsFormat( p_demux, p_stream );
 
                 p_old_stream->p_es = NULL;
                 p_old_stream = NULL;