https://github.com/kubernetes/kubernetes/pull/89222

gistfile1.txt

# This issues was fixed on v1.18.3 and later.

$ kind create cluster --image kindest/node:v1.18.2

$ kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.4", GitCommit:"c96aede7b5205121079932896c4ad89bb93260af", GitTreeState:"clean", BuildDate:"2020-06-17T11:41:22Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.2", GitCommit:"52c56ce7a8272c798dbc29846288d7cd9fbae032", GitTreeState:"clean", BuildDate:"2020-04-30T20:19:45Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}

$ cat <<EOL | kubectl apply -f-
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    run: debian
  name: debian
spec:
  selector:
    matchLabels:
      run: debian
  template:
    metadata:
      labels:
        run: debian
    spec:
      initContainers:
      - image: debian
        name: debian2
        command: ["echo"]
        resources:
          requests:
            cpu: 3000m
      containers:
      - image: debian
        name: debian
        command: ["tail", "-f", "/dev/null"]
EOL

$ kubectl describe node kind-control-plane | grep -A 8 "Allocated resources"
Allocated resources:
  (Total limits may be over 100 percent, i.e., overcommitted.)
  Resource           Requests     Limits
  --------           --------     ------
  cpu                3850m (48%)  100m (1%)
  memory             190Mi (9%)   390Mi (19%)
  ephemeral-storage  0 (0%)       0 (0%)
  hugepages-1Gi      0 (0%)       0 (0%)
  hugepages-2Mi      0 (0%)       0 (0%)

$ kubectl scale deploy debian --replicas=10

$ kubectl describe node kind-control-plane | grep -A 8 "Allocated resources"
Allocated resources:
  (Total limits may be over 100 percent, i.e., overcommitted.)
  Resource           Requests       Limits
  --------           --------       ------
  cpu                30850m (385%)  100m (1%)
  memory             190Mi (9%)     390Mi (19%)
  ephemeral-storage  0 (0%)         0 (0%)
  hugepages-1Gi      0 (0%)         0 (0%)
  hugepages-2Mi      0 (0%)         0 (0%)