mikutter

#916 (定期的にfollowアクティビティが大量に生成される) と関係するかもしれませんが
フォロー・フォロワータブに何も表示されていない行が発生することがあり、（特に起動直後）

その状態で何も表示されていない行をダブルクリックすると
mikutter が以下のログを吐いて落ちます。

Retriever::InvalidURIError `FalseClass' is not uri.
{MIKUTTER_DIR}/core/plugin/intent/intent.rb:77:in `block (2 levels) in <top (required)>'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/listener.rb:25:in `call'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/listener.rb:25:in `call'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/event.rb:97:in `block (2 levels) in call_all_listeners'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/event.rb:96:in `each'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/event.rb:96:in `block in call_all_listeners'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/event.rb:95:in `catch'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/event.rb:95:in `call_all_listeners'
/usr/pkg/lib/ruby/gems/2.2.0/gems/pluggaloid-1.1.1/lib/pluggaloid/event.rb:39:in `block in call'
/usr/pkg/lib/ruby/gems/2.2.0/gems/delayer-0.0.2/lib/delayer/procedure.rb:24:in `call'
/usr/pkg/lib/ruby/gems/2.2.0/gems/delayer-0.0.2/lib/delayer/procedure.rb:24:in `run'
/usr/pkg/lib/ruby/gems/2.2.0/gems/delayer-0.0.2/lib/delayer/extend.rb:58:in `run_once'
/usr/pkg/lib/ruby/gems/2.2.0/gems/delayer-0.0.2/lib/delayer/extend.rb:30:in `run'
/usr/pkg/lib/ruby/gems/2.2.0/gems/delayer-0.0.2/lib/delayer.rb:43:in `method_missing'
{MIKUTTER_DIR}/core/plugin/gtk/delayer.rb:10:in `block in boot'
{MIKUTTER_DIR}/core/plugin/gtk/mainloop.rb:10:in `call'
{MIKUTTER_DIR}/core/plugin/gtk/mainloop.rb:10:in `main'
{MIKUTTER_DIR}/core/plugin/gtk/mainloop.rb:10:in `mainloop'
{MIKUTTER_DIR}/mikutter.rb:64:in `boot!'
{MIKUTTER_DIR}/mikutter.rb:93:in `<main>'

NetBSD + pkgsrc の mikutter 3.5.1 です。