error message in DYE with Streamline with :plugins::DYE::shots::get_last

[decentjohn]

I was running on OSX, under simulation, so this isn't necessarily a common error, but it'd be good to trap it anyway.

index "0" is out of range
index "0" is out of range
    while executing
"espresso_$sn range 0 end"
    (procedure "::plugins::DYE::shots::get_last" line 18)
    invoked from within
"::plugins::DYE::shots::get_last"
    (procedure "::plugins::DYE::save_espresso_to_history_hook" line 6)
    invoked from within
"::plugins::DYE::save_espresso_to_history_hook {::plugins::SDB::save_espresso_to_history_hook Espresso Idle} 0 {} leave"
    (leave trace on "::plugins::SDB::save_espresso_to_history_hook  [dict...")
    (lambda term "event_dict {
			::plugins::SDB::save_espresso_to_history_hoo..." line 1)
    invoked from within
"::apply {event_dict {
			::plugins::SDB::save_espresso_to_history_hook  [dict get $event_dict previous_state]  [dict get $event_dict this_state]  }} {..."
    ("after" script)