Fix for HepMcParticleLink::id() method (ATLASSIM-6999)

Fix for the issue that if a HepMcParticleLink instance is created using a barcode, then calls to HepMcParticleLink::id() will not return the correct value until HepMcParticleLink::cptr() has been called.

See ATLASSIM-6999.

added bugfix label

This merge request affects 1 package:

• Generators/GeneratorObjects

This merge request affects 1 file:

• Generators/GeneratorObjects/src/HepMcParticleLink.cxx

added Generators main review-pending-level-1 labels

CI Result SUCCESS (hash 1c8dc11d)

	Athena	AthSimulation	AthGeneration	AthAnalysis
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 6626] (remote access info)

Changes look straight-forward and passes CI. Approving for L1.

removed review-pending-level-1 label

added review-approved label

mentioned in commit 5249968f

merged