Subsequent extraction of Questionnaire returns only Patient resource instead of Patient and Observation resources

[Itskiprotich]

Describe the bug

When extracting a Questionnaire containing both Patient and Observation resources using the Android FHIR SDK, the extraction behavior is inconsistent:

On the first extraction attempt, both Patient and Observation resources are returned as expected.
On subsequent attempts, only the Patient resource is extracted.
This behavior suggests a potential issue with resource handling or caching during the extraction process.

Component
SDC Library.

To Reproduce

1. Create a Questionnaire containing Patient and Observation resources.
2. Perform an extraction using the SDC Library.
   i). First attempt: Both Patient and Observation resources are returned.
   ii). Subsequent attempts: Only the Patient resource is returned.

Expected behavior
Both Patient and Observation resources should consistently be extracted on every attempt.

Screenshots

Additional context
Add any other context about the problem here.

Would you like to work on the issue?
N/A

[jingtang10]

please post the input and output of both extraction calls

[santosh-pingle]

@Itskiprotich You can use the code below to convert the resources (Questionnaire, QuestionnaireResponse) into a JSON string for posting here.
FhirContext.forCached(FhirVersionEnum.R4).newJsonParser().encodeResourceToString(questionnaireResponse)

[jingtang10]

the problem is the get questionnaire response code is not making a copy of the response correctly.

android-fhir/datacapture/src/main/java/com/google/android/fhir/datacapture/QuestionnaireViewModel.kt

Line 479 in dc44a44

questionnaireResponse.item,

needs to be changed to take from this rather than questionnaireResponse