asfdemux: Re-initialize demux->adapter in gst_asf_demux_reset.
It looks I overlooked this in the last MR. The variable is used in pull mode when seeking, but it mainly used in push mode, so I think push mode may be broken without this fix.
It looks I overlooked this in the last MR. The variable is used in pull mode when seeking, but it mainly used in push mode, so I think push mode may be broken without this fix.