An unexpected side effect was causing configuration to be removed
when an instance method was updated (e.g., changing access or name).
This patch resolves the issue by ensuring configuration persistence
during instance updates, preserving expected behavior.
Unit tests have been added to validate that instance operations
no longer inadvertently modify or delete existing configuration.
Change-Id: I09d3f44e436ba543777551ac66e0be2d619c6377
Signed-off-by: Erkin Mussurmankulov <mangust404@gmail.com>
fd7186bdcc