fix context module progression relocking race condition
fix context module progression relocking race condition

test plan:
* relocking should work as before

closes #CNVS-26389

Change-Id: I5bc9d532860445131e43a04b8296e01d107bff79
Reviewed-on: https://gerrit.instructure.com/70272
Tested-by: Jenkins
Reviewed-by: Dan Minkevitch <2591e5f46f28d303f9dc027d475a5c60d8dea17a@instructure.com>
QA-Review: Jahnavi Yetukuri <ed2b2672ccc2e59e56c0615df7f01b579202e014@instructure.com>
Product-Review: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

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