Spec: fix get call on failing dashboard specs
Spec: fix get call on failing dashboard specs

Test Plan:
Review change, run specs

Change-Id: Ic7df92b084f3d9a65247c80cc9e94b87eac45e53
Reviewed-on: https://gerrit.instructure.com/72357
Reviewed-by: Matt Fairbourn <5f353e1c97bb9cc046b9db20beca0b9392f6f1b2@instructure.com>
Product-Review: Matt Fairbourn <5f353e1c97bb9cc046b9db20beca0b9392f6f1b2@instructure.com>
QA-Review: Matt Fairbourn <5f353e1c97bb9cc046b9db20beca0b9392f6f1b2@instructure.com>
Tested-by: Jenkins

instructure/canvas-lms,fronteerio/canvas-lms,HotChalk/canvas-lms,djbender/canvas-lms,dgynn/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,dgynn/canvas-lms,dgynn/canvas-lms,venturehive/canvas-lms,roxolan/canvas-lms,dgynn/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,roxolan/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,matematikk-mooc/canvas-lms,roxolan/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,roxolan/canvas-lms,fronteerio/canvas-lms,fronteerio/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,SwinburneOnline/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,fronteerio/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms