field tokens don't work during 'drush updb'

During hook_update_N() functions, when run from drush updb, field tokens always evaluate to empty string.

You can reproduce this by having a pathauto pattern setup for node content which includes a field token (like: [node:field_category] where that is a taxonomy reference field) and then writing a hook_update_N() function which loads and saves an existing node. You'll see that the field token part of the path disappears!

I've traced this down to module_implements() and order that it's loading .inc files and checking for hook implementations. Basically, it's looping through the list of modules (in name and weight order), attempting to load $module.tokens.inc and then checking if the hook exists. It does "field" before "token", however, field_tokens() is implemented in token.tokens.inc, which won't be loaded yet!

See the implementation on api.drupal.org for more information: https://api.drupal.org/api/drupal/includes%21module.inc/function/module_...

This happens when running the update functions via drush, because drush clears the cache for module_implements() and then works from the static cache for the rest of the time. I'm using Drush 6.2.0.

I'll upload a patch in a few minutes to fix this!