fix switchman initializer for class reloading

Change-Id: I39477220c0f1751ae245d504a80bfcc986493fa2
Reviewed-on: https://gerrit.instructure.com/36957
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Rob Orton <rob@instructure.com>
QA-Review: Rob Orton <rob@instructure.com>
Reviewed-by: Jon Jensen <jon@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>