fix fragile quiz spec
fix fragile quiz spec

fixes CNVS-15047
This commit fixes a spec that became fragile as a result of ef939ea.

Test plan
- Run the specs

Change-Id: Iac07e01ba1bfe6db0eb7e2028040a48e4b920ce1
Reviewed-on: https://gerrit.instructure.com/39836
Reviewed-by: Bryan Madsen <0a3ba1af216659500dd8f41e29f3979f42452870@instructure.com>
Product-Review: Bryan Madsen <0a3ba1af216659500dd8f41e29f3979f42452870@instructure.com>
QA-Review: Bryan Madsen <0a3ba1af216659500dd8f41e29f3979f42452870@instructure.com>
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Product-Review: Josh Simpson <bfb4987b134a00f73d881fff5113b1d5fa1876bc@instructure.com>

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