fix(gx2f): use all states for `jacobianFromStart`

[AJPfleger]

Since we also set the jacobians for holes-states, we need to multiply those in.

[andiwand]

Looking at the implementation of the GX2F we only call transportCovarianceToBound here https://github.com/acts-project/acts/blob/02de894a2513ce1488011e9d6ab8447b83b75afb/Core/include/Acts/TrackFitting/GlobalChiSquareFitter.hpp#L445 which indicates to me that the jacobians for holes are not generated and stored. Looking at the hole implementation we are explicitly skipping the cov transport there https://github.com/acts-project/acts/blob/02de894a2513ce1488011e9d6ab8447b83b75afb/Core/include/Acts/TrackFitting/GlobalChiSquareFitter.hpp#L566C36-L566C46

[github-actions[bot]]

📊: Physics performance monitoring for 016084dfddaab53eb64d07685590f9f15ba3db5d

Full contents

physmon summary

• ✅ CKF truth_smeared
• ✅ IVF truth_smeared
• ✅ AMVF truth_smeared
• ✅ Track Summary CKF truth_smeared
• ✅ Seeding truth_estimated
• ✅ CKF truth_estimated
• ✅ IVF truth_estimated
• ✅ AMVF truth_estimated
• ✅ Track Summary CKF truth_estimated
• ✅ Seeding seeded
• ✅ CKF seeded
• ✅ IVF seeded
• ✅ AMVF seeded
• ✅ AMVF (+grid seeder) seeded
• ✅ Track Summary CKF seeded
• ✅ Seeding orthogonal
• ✅ CKF orthogonal
• ✅ IVF orthogonal
• ✅ AMVF orthogonal
• ✅ Track Summary CKF orthogonal
• ✅ Ambisolver seeded
• ✅ Ambisolver orthogonal
• ✅ Seeding ttbar
• ✅ CKF ttbar
• ✅ Ambisolver
• ✅ Track Summary CKF ttbar
• ✅ AMVF ttbar
• ✅ AMVF (+grid seeder) ttbar
• ✅ Truth tracking (GSF)
• ✅ Truth tracking
• 🔴 Truth tracking (GX2F)
• ✅ Particles fatras
• ✅ Particles geant4

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 47.42%. Comparing base (55e6ede) to head (016084d). Report is 519 commits behind head on main.

Files with missing lines	Patch %	Lines
...nclude/Acts/TrackFitting/GlobalChiSquareFitter.hpp	0.00%	0 Missing and 1 partial :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3274   +/-   ##
=======================================
  Coverage   47.41%   47.42%           
=======================================
  Files         511      511           
  Lines       30225    30225           
  Branches    14659    14659           
=======================================
+ Hits        14332    14333    +1     
+ Misses       5362     5361    -1     
  Partials    10531    10531           

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[AJPfleger]

Will be handled clearer in

• https://github.com/acts-project/acts/pull/3551