Fix rebase check
Increase the depth of the shallow clone done by GitLab. If the number of commits is larger than the depth, the head of the upstream/master is not in the history otherwise. This fixes a problem of !399 (merged).
Increase the depth of the shallow clone done by GitLab. If the number of commits is larger than the depth, the head of the upstream/master is not in the history otherwise. This fixes a problem of !399 (merged).