Automatic merge from submit-queue
Fix rc scaler watch
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**What this PR does / why we need it**:
The RC scaler uses Watch to monitor if the RC is scaled. The Watch was sent with resourceVersion=0, so the watch event it gets back starts from any point in the history, so the result is not valid.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
Probably will fix#30990Fix#30469
**Special notes for your reviewer**:
This breaks the load test because the reaper doesn't actually wait until all the pods are gone before it deletes the RC.
I haven't run the node-100 test myself to verify it fixes the problem though.
cc @deads2k @smarterclayton @lavalamp
ca5879bdb9