Fix GraphQL tree query erroring when using tags

Merged Phil Hughes requested to merge ph/fixRuggedTagTreeError into master

What does this MR do?

Fixes an error when the GraphQL tree query returns a Rugged::Tag object.

Screenshots

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Security

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  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
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