Add git_ref for no ref is mentioned

[engedaam]

Fixes #N/A

Description

How was this change tested?

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[coveralls]

Pull Request Test Coverage Report for Build 7215229238

Warning: This coverage report may be inaccurate.

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A quick fix for this PR: rebase it; your next report should be accurate.

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.541%

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Totals
Change from base Build 7215049468:	0.0%
Covered Lines:	4950
Relevant Lines:	5997

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💛 - Coveralls