Reset savepoints when resetting instances

[grzesiek2010]

Closes #6331

Why is this the best possible solution? Were any other approaches considered?

When resetting saved forms, we should also reset savepoints, as they are essentially saved forms too, making it logical to reset them together.

How does this change affect users? Describe intentional changes to behavior and behavior that could have accidentally been affected by code changes. In other words, what are the regression risks?

I believe it should just fix the issue. I can't think of any big risk here so during testing we can focus on resetting saved forms.

Do we need any specific form for testing your changes? If so, please attach one.

No.

Does this change require updates to documentation? If so, please file an issue here and include the link below.

No.

Before submitting this PR, please make sure you have:

• added or modified tests for any new or changed behavior
• run ./gradlew connectedAndroidTest (or ./gradlew testLab) and confirmed all checks still pass
• added a comment above any new strings describing it for translators
• added any new strings with date formatting to DateFormatsTest
• verified that any code or assets from external sources are properly credited in comments and/or in the about file.
• verified that any new UI elements use theme colors. UI Components Style guidelines

[seadowg]

This looks good, but it needs to be rebased on top of master so that it's not readding back in the entities clearing (which was removed recently).

[grzesiek2010]

This looks good, but it needs to be rebased on top of master so that it's not readding back in the entities clearing (which was removed recently).

Done.

[WKobus]

Tested with Success

Verified on device with Android 15

Verified cases:

• Issue Savepoint after resetting saved forms in project settings #6331 does not occur
• Resetting saved and blank forms
• Resets in entity and non entity forms

[dbemke]

Tested with Success

Verified on device with Android 10