Deploying configmapcontroller redeploys watched deployments

[apoland]

version: 2.3.11
If configmapcontroller gets redeployed, it appears to immediately restart all the deployments that are annotated for update-on-change, even if the ConfigMaps have not been updated.

Perhaps it needs to persist the last check time so that can be referenced by the new deployment.

[lcnuance]

I think that since the add method is run to add the configmaps to the local store then it triggers the update.