spec: fix external_tools_spec for draft state
spec: fix external_tools_spec for draft state

refs #CNVS-15563

Change-Id: I9be4fb4bc5541d85f078a21da2106da9838c693c
Reviewed-on: https://gerrit.instructure.com/43347
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Product-Review: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>
Reviewed-by: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>
QA-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

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