fix: compound slots with variants

[jrgarciadev]

Description

Compound slots fixed, compound slots applied even when the variant was undefined or did not match

Additional context

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What is the purpose of this pull request?

• [x] Bug fix
• [ ] New Feature
• [ ] Documentation update
• [ ] Other

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• [ ] Read the Contributing Guidelines.
• [ ] Follow the Style Guide.
• [ ] Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• [ ] Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).