This reverts commit 15fc159cb1.
Reason for revert: this is breaking the addition of rev ids to filter
hits after edits are saved. I suspect this is because the context wikipage
is for a different title than the one being edited, though I'm not sure
way - regardless, testing on patchdemo shows that with this revert
is applied, rev ids are once again added to filter hits.
Bug: T286140
Change-Id: I3ab6324a73050154cef1c20a2bf8307eb11eea2d