Version (&) and reference version (&) must be different

What causes this issue?

You want to define version &V1& as a delta version by assigning
reference version &V1&. The version cannot refer to itself.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Choose a version other than &V1& as the reference version.

Error message extract from SAP system. Copyright SAP SE.