[Object API] Use of structuredClone causes errors with related telemetry in imagery

[akhenry]

Summary

A recent change to the object API results in objects being cloned in order to provide the pre-mutation model in observer callback functions. This change was using the builtin structuredClone which is intended for this purposes, however structuredClone will bork on functions. In Open MCT for VIPER we are defining functions on imagery metadata in order to determine staleness tolerances.

Steps to Reproduce

1. Attempt to navigate to an image in the telemetry dictionary
2. Observe the presence of a spinner

Environment

• Open MCT Version: 7917f09
• Deployment Type: VIPER Test

Impact Check List

• Data loss or misrepresented data?
• Regression? Did this used to work or has it always been broken?
• Is there a workaround available?
• Does this impact a critical component?
• Is this just a visual bug with no functional impact?
• Does this block the execution of e2e tests?
• Does this have an impact on Performance?

Additional Information

[shefalijoshi]

Verified Fixed. Able to view imagery.