[CE] Incorporate Gitaly's RepositoryService.IsSquashInProgress RPC (!17002) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Alejandro Rodríguez requested to merge ce-gitaly-squash-in-progress into master Feb 08, 2018

CE backport of the relevant changes of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/4436