FIO-2453: Fixes an issue where custom disabled dates are bot recalcul…

[travist]

…ated after for valus is changed

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-XXXX

Description

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Checklist:

• [ ] I have completed the above PR template
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation (if applicable)
• [ ] My changes generate no new warnings
• [ ] My changes include tests that prove my fix is effective (or that my feature works as intended)
• [ ] New and existing unit/integration tests pass locally with my changes
• [ ] Any dependent changes have corresponding PRs that are listed above