Causes page corruption, in a new way we haven't seen before.
* Revert "Move page updating logic to controller.js"
This reverts commit 54fdc6de06.
* Revert "ReplyWidget: Move clear methods from #teardown to #clear"
This reverts commit 9b811a94e0.
* Revert "ApiDiscussionToolsEdit: Do not pass 'basetimestamp'"
This reverts commit 7de5938a6f.
* Revert "Use DOMCompat::getOuterHTML instead of doc->saveHTML()"
This reverts commit 7b2448d2f0.
* Revert "CommentController: Remove remains of client-side edit conflict handling"
This reverts commit 2d038af705.
* Revert "Restore error message for when comment is deleted while replying"
This reverts commit 655c0526d6.
* Revert "Use transcluded from API to avoid ever fetching Parsoid DOM in client"
This reverts commit 9d0fc184fe.
* Revert "Create a 'transcludedfrom' API endpoint"
This reverts commit 5d8f3b9051.
* Revert "Edit API for replies"
This reverts commit 8829a1a412.
Bug: T259855
Change-Id: I6419408c6194ec0afa6b8ee604b12c1a24c6ac7b