rmail Encoding::CompatibilityError when replying to a message with utf-8 chars in subject

[wmorgan]

$HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/header.rb:81:in =~': incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string) (Encoding::CompatibilityError) from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/header.rb:81:inparse'
from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:233:in block in parse_header' from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:229:ineach'
from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:229:in parse_header' from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:194:inparse_low'
from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:183:in parse' from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:331:inparse'
from $HOME/.rvm/gems/ruby-1.9.2-p180/gems/rmail-1.0.0/lib/rmail/parser.rb:345:in read' from $HOME/devel/turnsole/lib/turnsole/modes/edit-message-mode.rb:273:inparse_file'
from $HOME/devel/turnsole/lib/turnsole/modes/edit-message-mode.rb:166:in edit_message!' from $HOME/devel/turnsole/lib/turnsole/input.rb:39:inhandle'
from $HOME/devel/turnsole/lib/turnsole/ui.rb:69:in block in step' from $HOME/devel/turnsole/lib/turnsole/ui.rb:94:inblock in spawn_fiber'

[stapelberg]

I have this issue, too, but when sending an email with UTF-8 characters in the subject, for example ’

$ ruby -I lib -I ../heliotrope/lib bin/turnsole
/home/michael/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': iconv will be deprecated
in the future, use String#encode instead.
/home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/header.rb:81:in `=~': incompatible encoding regexp match
(ASCII-8BIT regexp with UTF-8 string) (Encoding::CompatibilityError)
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/header.rb:81:in `parse'
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:233:in `block in parse_header'
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:229:in `each'                 
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:229:in `parse_header'
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:194:in `parse_low'   
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:183:in `parse'    
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:331:in `parse'
    from /home/michael/.rvm/gems/ruby-1.9.3-p0@sup2011-11-18/gems/rmail-1.0.0/lib/rmail/parser.rb:345:in `read' 
    from /home/michael/turnsole/lib/turnsole/modes/edit-message-mode.rb:273:in `parse_file'                    
    from /home/michael/turnsole/lib/turnsole/modes/edit-message-mode.rb:166:in `edit_message!'
    from /home/michael/turnsole/lib/turnsole/modes/compose-mode.rb:19:in `edit_message!'      
    from /home/michael/turnsole/lib/turnsole/modes/compose-mode.rb:47:in `spawn_nicely' 
    from /home/michael/turnsole/lib/turnsole/global.rb:100:in `do'                     
    from /home/michael/turnsole/lib/turnsole/input.rb:41:in `handle'
    from /home/michael/turnsole/lib/turnsole/ui.rb:69:in `block in step'
    from /home/michael/turnsole/lib/turnsole/ui.rb:100:in `block in spawn_fiber'