test_recreate_plus_card_name_variant errors out with MySQL 5.1.51

Here is output from script/about:

About your application's environment
Ruby version              1.8.7 (i686-darwin10)
RubyGems version          1.3.7
Rack version              1.0
Rails version             2.3.5
Active Record version     2.3.5
Active Resource version   2.3.5
Action Mailer version     2.3.5
Active Support version    2.3.5
Application root          /opt/wagn
Environment               development
Database adapter          mysql
Database schema version   20101029053352

And output from rake test:units (I could also run this with --trace, but the extra output didn't seem to be relevant):

(in /opt/wagn)
skipping loading test data.  to force, run  env RELOAD_TEST_DATA=true rake db:test:prepare
/opt/local/bin/ruby -I"lib:test" "/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/unit/card/base_test.rb" "test/unit/card/create_test.rb" "test/unit/card/remove_test.rb" "test/unit/card/rename_test.rb" "test/unit/card/search_test.rb" "test/unit/cardtype/image_test.rb" "test/unit/cardtype/invitation_request_test.rb" "test/unit/cardtype/role_test.rb" "test/unit/chunks/link_test.rb" "test/unit/chunks/literal_test.rb" "test/unit/chunks/transclusion_test.rb" "test/unit/chunks/uri_test.rb" "test/unit/diff_test.rb" "test/unit/revision_test.rb" "test/unit/role_test.rb" "test/unit/user_test.rb" "test/unit/wagn_ruby_test.rb" "test/unit/wiki_content_test.rb" 
/opt/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/rails/gem_dependency.rb:119:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010.  Use #requirement
Loaded suite /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader
Started
.........................E..................................................................The 
Any name (or chunk of text being treated as a name) can be translated into a standardized "key."  Keys are comprised solely of lowercase alphanumeric characters, underscores, and asterisks.
 
The key is used primarily in detecting name variants.
 
Some examples:

Apples — apple
TedErnst — ted_ernst
Joe's Blog Entries — joe_s_blog_entry

The default Wagn algorithm for key generation is as follows.

decode any HTML
add a space before any upper case letter followed by a lower case letter (this splits CamelCase into words)
make all upper case into lower case
replace any non-alphanumeric character (except *) with a space
break the name into words, and make each word singular if it's plural
rejoin those words with underscores (instead of spaces)

 
NOTE: At present the above algorithm has an English bias, because the singularization algorithm is based on English patterns.  In coming releases, this will be addressed in attempts to make Wagn more completely international.
 
tickets relevant to keys
 interpolation syntax in I18n messages is deprecated. Please use %{key} instead.
en - is too short (minimum is 
 characters)

.............
Finished in 18.727965 seconds.

  1) Error:
test_recreate_plus_card_name_variant(Card::RemoveTest):
ActiveRecord::StatementInvalid: Mysql::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''rtb*trash')  LIMIT 1' at line 1: SELECT * FROM `cards` WHERE (name=E'rtb*trash')  LIMIT 1
    app/models/card.rb:25:in `send'
    app/models/card.rb:25:in `method_missing'
    /test/unit/card/remove_test.rb:26:in `test_recreate_plus_card_name_variant'

105 tests, 1267 assertions, 0 failures, 1 errors
rake aborted!
Command failed with status (1): [/opt/local/bin/ruby -I"lib:test" "/opt/loc...]

(See full trace by running task with --trace)