Failing to register WellboreMarkerSet.1.2.1.json schema

While trying to register shared WellboreMarkerSet.1.2.1.json (link) schema using DeploySharedSchemas.py - registration fails with the following error:

Error with kind osdu:wks:work-product-component--WellboreMarkerSet:1.2.1: Message: Patch version validation failed. Changes requiring a minor or major version increment were found; analysed version: 1.2.1 and 1.2.0. Updating the schema version to a higher minor or major version is required.

For the same request application logs the following:

schema.app: Failed to resolve the schema and find breaking changes. Reason :Patch version validation failed. Changes requiring a minor or major version increment were found; analysed version: {0} and {1}. Updating the schema version to a higher minor or major version is required.
schema.app: Patch version validation failed. Changes requiring a minor or major version increment were found; analysed version: 1.2.0 and 1.2.1. Updating the schema version to a higher minor or major version is required.