FIO-8146 fixed saveDraft triggering for nested forms after submitting

[HannaKurban]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-8146

Description

Previously, saveDraft was triggered for the nested form after submitting the form. This was fixed by canceling triggerSaveDraft for the subForm

Dependencies

no

How has this PR been tested?

tested locally with using jsfiddle

Checklist:

• 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