Follow-up from "WIP: Resolve "Search loses branch""

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The following discussion from gitlab-ce!28282 should be addressed:

• @pslaughter started a discussion:

  note to maintainer: There is no unit test spec for this file. Technically the behavior is covered by the feature specs so we should be making these changes...

  I propose we create a follow up issue to move this initRefSwitcher function into it's own module and give it some unit testing love.