CIs are assumed to do a git fetch and git merge before running tests.
Therefore, no need for a git fetch inside our validate scripts in CI.
If VALIDATE_ORIGIN_BRANCH is set, then git fetch is skipped and
VALIDATE_ORIGIN_BRANCH is used in validate scripts.
Otherwise, behavior is unchanged.
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit feb70fd5c9e2fb3f300e953dd83053f0830f3895)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 7b9ec00eec7ffe745ebd2f807daa50d84b3e10e7
Component: engine