When trying to enhance class annotated with @ManyToOne with targetEntity=Country.class at build-time, hibernate-enhance-maven-plugin logs an error

[ERROR] Failed to execute goal org.hibernate.orm.tooling:hibernate-enhance-maven
-plugin:5.0.1.Final:enhance (default) on project test-enhance-maven-plugin: Unab
le to enhance class: entity.Address: Unable to enhance persistent attribute [ent
ity.Address:country]: UndeclaredThrowableException: entity.Country -> [Help 1]

See the attached test project (test-enhance-maven-plugin) to reproduce this issue.