fix: skipDoubleRegistration with instanceName

[KnightOfBlackLily]

Fix for skipDoubleRegistration behavior

Description

This PR fixes the behavior of the skipDoubleRegistration parameter. Previously, it ignored registration regardless of the instanceName value. Now, registration is only skipped if the instanceName matches, which is the expected behavior.

Changes made:

• Updated the logic for skipDoubleRegistration to take instanceName into account when deciding whether to skip registration.

Why this is important:

This fix prevents situations where a registration could be mistakenly skipped even with different instanceName values, which caused incorrect behavior in certain scenarios.

Testing:

• Tested with both unnamed registrations and those with instanceName values to ensure that registration is only skipped when names are the same and works as expected otherwise.

[escamoteur]

Nice catch