Rename the existing migrations to use the migration naming convention where variations of the basic migrations are named in the form basicmigration_variation, e.g., d7_node_translation.yml . The same pattern should be used for the related files like migration plugins and tests.
The files that need renaming are;
./core/modules/config_translation/tests/src/Kernel/Migrate/d6/MigrateI18nUserConfigsTest.php
./core/modules/config_translation/tests/src/Kernel/Migrate/d6/MigrateI18nUserProfileFieldInstanceTest.php
./core/modules/config_translation/tests/src/Kernel/Migrate/d6/MigrateI18nSystemMaintenanceTest.php
./core/modules/config_translation/tests/src/Kernel/Migrate/d6/MigrateI18nSystemSiteTest.php
./core/modules/config_translation/tests/src/Kernel/Plugin/migrate/source/d6/I18nProfileFieldTest.php
./core/modules/config_translation/src/Plugin/migrate/source/d6/I18nProfileField.php
./core/modules/config_translation/migration_templates/d6_i18n_user_profile_field_instance.yml
./core/modules/config_translation/migration_templates/d6_i18n_user_mail.yml
./core/modules/config_translation/migration_templates/d6_i18n_system_site.yml
./core/modules/config_translation/migration_templates/d6_i18n_system_maintenance.yml
./core/modules/config_translation/migration_templates/d6_i18n_user_settings.yml
./core/modules/migrate_drupal/tests/src/Unit/source/d6/i18nVariableTest.php
./core/modules/migrate_drupal/src/Plugin/migrate/source/d6/i18nVariable.php
Fixed
8.4 ⚰️
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