PV controller races with itself when you prebind a PVC

[msau42]

What happened:
Offshoot of #85320 (comment). The impact is that a prebound PVC could take up to 30 seconds to bind.

What you expected to happen:
Ideally, the PV controller shouldn't intentionally race with itself.

How to reproduce it (as minimally and precisely as possible):
Create a PVC that is prebound to a PV. Sometimes it will take a long time to finally bind. The VolumeBinding integration test was often flaking due to this.

Anything else we need to know?:

Environment:

• Kubernetes version (use kubectl version):
• Cloud provider or hardware configuration:
• OS (e.g: cat /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools:
• Network plugin and version (if this is a network-related bug):
• Others:

[msau42]

/assign @msau42 @jsafrane

[msau42]

@kubernetes/sig-storage-bugs

[fejta-bot]

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[fejta-bot]

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[msau42]

/lifecycle frozen