Shopify/liquid — pull request #376 by davidcornu (2014-07-02 17:33:52+00:00)
Title: Avoid holding on to stale tag classes

Liquid's `Template.register_tag` keeps a reference to the class used for each tag in a hash. While this is fine for production use, Rails redefines constants when reloading classes which causes any reloaded tag classes to break.

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