Strange value in "capacity.storage" key after pvc creation

[l-maciej]

What happened:

When creating a PVC with size 200m created PV have capacity.storage set to 1
It happens only with this particular value (100Mi or 5Gi don't create such result)

What you expected to happen:

Create PV with capacity.storage: 200m

How to reproduce it:
Create a PV using manifest

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: kanboard-pvc-plugins
spec:
  accessModes:
    - ReadWriteOnce
  storageClassName: nfs-hdd
  resources:
    requests:
      storage: 200m

Created PV will have spec

Name:            pvc-1d8e37b6-cf6c-4ced-aaf3-94ffd9740cad
Labels:          <none>
Annotations:     pv.kubernetes.io/provisioned-by: nfs.csi.k8s.io
                 volume.kubernetes.io/provisioner-deletion-secret-name:
                 volume.kubernetes.io/provisioner-deletion-secret-namespace:
Finalizers:      [kubernetes.io/pv-protection]
StorageClass:    nfs-hdd
Status:          Bound
Claim:           workloads/kanboard-pvc-plugins
Reclaim Policy:  Retain
Access Modes:    RWO
VolumeMode:      Filesystem
Capacity:        1
Node Affinity:   <none>
Message:         
Source:
    Type:              CSI (a Container Storage Interface (CSI) volume source)
    Driver:            nfs.csi.k8s.io
    FSType:            
    VolumeHandle:      pdev-nas-01#k3s-storage-hdd#pvc-1d8e37b6-cf6c-4ced-aaf3-94ffd9740cad##
    ReadOnly:          false
    VolumeAttributes:      csi.storage.k8s.io/pv/name=pvc-1d8e37b6-cf6c-4ced-aaf3-94ffd9740cad
                           csi.storage.k8s.io/pvc/name=kanboard-pvc-plugins
                           csi.storage.k8s.io/pvc/namespace=XXXX
                           server=XXXX
                           share=XXXX
                           storage.kubernetes.io/csiProvisionerIdentity=1723720414355-5689-nfs.csi.k8s.io
                           subdir=pvc-1d8e37b6-cf6c-4ced-aaf3-94ffd9740cad
Events:                <none>

Environment:

• CSI Driver version: v4.8.0
• Kubernetes version (use kubectl version): 1.30.3
• OS (e.g. from /etc/os-release): Rocky 8.6
• Kernel (e.g. uname -a): 4.18.0-372.13.1.el8_6.x86_64

[andyzhangx]

I think the minimum size of pvc should be 1Gi