Improve the Twopence lazy initzialition refactor

[srbarrios]

What does this PR change?

We had some corner case after the refactor of the twopence node init that are addressed in this PR.

GUI diff

No difference.

• DONE

Documentation

• No documentation needed

• DONE

Test coverage

• Cucumber tests were refactored

• DONE

Links

Adapted port of https://github.com/SUSE/spacewalk/pull/22384 and https://github.com/SUSE/spacewalk/pull/22385

• DONE

Changelogs

Make sure the changelogs entries you are adding are compliant with https://github.com/uyuni-project/uyuni/wiki/Contributing#changelogs and https://github.com/uyuni-project/uyuni/wiki/Contributing#uyuni-projectuyuni-repository

If you don't need a changelog check, please mark this checkbox:

• No changelog needed

If you uncheck the checkbox after the PR is created, you will need to re-run changelog_test (see below)

Re-run a test

If you need to re-run a test, please mark the related checkbox, it will be unchecked automatically once it has re-run:

• Re-run test "changelog_test"
• Re-run test "backend_unittests_pgsql"
• Re-run test "java_pgsql_tests"
• Re-run test "schema_migration_test_pgsql"
• Re-run test "susemanager_unittests"
• Re-run test "javascript_lint"
• Re-run test "spacecmd_unittests"

[nodeg]

LGTM.