Support deployment keys with Git LFS

I use git as part of my build & deployment process. Part of the build stage involves the generation and subsequent commit of two large files, the various versions of which were taking up repo space and pushing against the 2GB limit for Bitbucket repos. This seemed like an ideal use case for the new git LFS feature, which I implemented this morning.

The build-stage push to Bitbucket seems to be working fine; I can see these files in the Git LFS section of my repo settings. However, I encounter a problem in the deployment stage. After checking out the appropriate tag, I attempt to use git lfs fetch and get the following output:

Fetching HEAD
Git LFS: (0 of 2 files) 0 B / 17.11 MB
exit status 1
Warning: errors occurred

With no further information available and no helpful information resulting from my google searches, I have to assume that this is a bug in the beta LFS feature in Bitbucket. I'm going to be rolling back my LFS implementation to unblock my build & deployment process, but I'd appreciate if somebody could investigate and explain in more detail what this error means and how to address it.

Thanks for any help you can provide.