Comment 2 for bug 1302634

StacktraceTop:
 queue_task (thread=0x0, task=0x364cd80) at rb-mtp-thread.c:145
 rb_mtp_thread_download_track (thread=<optimized out>, track_id=<optimized out>, filename=filename@entry=0x7f9229dc4cbd "", func=func@entry=0x7f9229dbd8a0 <download_cb>, data=<optimized out>, destroy_data=0x0) at rb-mtp-thread.c:775
 rb_mtp_src_start (basesrc=<optimized out>) at rb-mtp-gst-src.c:219
 gst_base_src_start (basesrc=basesrc@entry=0x36b6c70) at gstbasesrc.c:3198
 gst_base_src_is_random_access (src=0x36b6c70) at gstbasesrc.c:2581