[BUG] Misleading message "The volume is in expansion progress from size 20Gi to 10Gi" if the expansion is invalid

[innobead]

Discussed in #4459

^{Originally posted by usma0118 August 22, 2022}
No changes made to pod or longhorn, one of volumes is stuck in volume expansion in progress.

Any ideas how to fix this?

have tried scaling down workload to 0 and reattaching volume... no changes.

[longhorn-io-github-bot]

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[innobead]

@derekbit Do we have any validation to avoid users request volume size reduction in the validation admission?

[yangchiu]

Verified passed on master-head (longhorn-ui e3d280c). Unable to reduce volume size through ui or api.