fixes CNVS-6592
test plan
- ensure discussion topic locking works as before
- delete and undelete a topic
- ensure that undeleted topic remembers whether it was locked
Change-Id: I389dc68ac181283b77fd23e5ca9b71b8bf6a0b55
Reviewed-on: https://gerrit.instructure.com/21923
Reviewed-by: Mark Ericksen <marke@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Cam Theriault <cam@instructure.com>
Product-Review: Joel Hough <joel@instructure.com>
Joel Hough