Does glide up -v search in the cache?

[matte21]

What's the behavior of glide up wrt the cache?
AFAIU glide up downloads and vendors the latest dependencies that are not newer than the version limits set in glide.yaml. What happens if glide up is run when there's a dependency D for which the two latest versions compatible with the constrains in glide.yaml are V1 and V2 with V1 < V2 and the glide cache contains V1? Which version is picked assuming vendor contains a version which is older than both V1 and V2 ?

Sorry to open an issue for a question like this, but I couldn't get an answer from the docs and the README did not point to any support channel/mailing list.