fix error when both ref and depth specified#226

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AliAllomani wants to merge 3 commits intohashicorp:mainfrom

AliAllomani:fix_git_ref_depth

Commits on Nov 28, 2019

fix error when both ref and depth specified
Ali Allomani
committed
suggestion if ref is not branch for depth and ref
Ali Allomani
committed

Commits on Nov 12, 2020

depth with multi-branch support, get_git_test test case TestGitGetter_branchshallowClone
Ali Allomani
committed