Comment 2 for bug 1501049

StacktraceTop:
 g_assertion_message (domain=domain@entry=0x7f098880c7cb "Totem", file=file@entry=0x7f098880f50d "totem-grilo.c", line=line@entry=729, func=func@entry=0x7f098880fcf8 <__func__.65900> "browse_cb", message=message@entry=0x563445316d10 "code should not be reached") at /build/glib2.0-pRoDo9/glib2.0-2.46.0/./glib/gtestutils.c:2429
 g_assertion_message_expr (domain=domain@entry=0x7f098880c7cb "Totem", file=file@entry=0x7f098880f50d "totem-grilo.c", line=line@entry=729, func=func@entry=0x7f098880fcf8 <__func__.65900> "browse_cb", expr=expr@entry=0x0) at /build/glib2.0-pRoDo9/glib2.0-2.46.0/./glib/gtestutils.c:2444
 browse_cb (source=0x563444051aa0, browse_id=<optimized out>, media=0x5634452886b0, remaining=1, user_data=0x563442b1fba0, error=<optimized out>) at totem-grilo.c:729
 queue_process (user_data=0x5634453bdad0) at grl-source.c:2089
 g_main_dispatch (context=0x56344292d8e0) at /build/glib2.0-pRoDo9/glib2.0-2.46.0/./glib/gmain.c:3154