Fixing an issue where an unpublished article causes an error in the caching code, as it has no permalink yet.
Fixing an issue where an unpublished article causes an error in the caching code, as it has
no permalink yet.

mleung/feather,mleung/feather,ivey/merbivore-blog,mleung/feather,ivey/merbivore-blog,ivey/merbivore-blog