Initialize API - invoke completion callback for early return

[ishita-gambhir-adobe]

Description

Initialize API - invoke completion callback for early return

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ne/java/com/adobe/marketing/mobile/MobileCore.java	0.00%	2 Missing ⚠️
...om/adobe/marketing/mobile/MobileCoreInitializer.kt	0.00%	0 Missing and 2 partials ⚠️

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