gnuine/tiny_mce — pull request #1 by tokland (2012-04-19 09:10:37+00:00)
Title: Don't update public files on initialize

TinyMCE#initialize overwrites public files when it detects that the tinyMCE shipped with the plugin does not match the installed. That forces you to use the exact version the plugin has (and not for example a newer one the plugin still works fine with).

So I'd say it's better just to remove that step and let the user call it if he wants to (in a rake task for example.)