[13_1] Preserve electron mass after FastSim Bremsstrahlung emmision

[srimanob]

PR description:

Backport of #42250

[cmsbuild]

A new Pull Request was created by @srimanob (Phat Srimanobhas) for CMSSW_13_1_X.

It involves the following packages:

• FastSimulation/SimplifiedGeometryPropagator (fastsim)

@cmsbuild, @ssekmen, @civanch, @mdhildreth, @sbein can you please review it and eventually sign? Thanks.
@matt-komm this is something you requested to watch as well.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.

cms-bot commands are listed here

• Backported from Preserve electron mass after FastSim Bremsstrahlung emmision #42250

[srimanob]

@cmsbuild please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4b04d7/34042/summary.html
COMMIT: 16ad2f3
CMSSW: CMSSW_13_1_X_2023-08-02-1100/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/42453/34042/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 14 lines to the logs
• Reco comparison results: 11397 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3186945
• DQMHistoTests: Total failures: 22408
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3164515
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 207 log files, 159 edm output root files, 48 DQM output files
• TriggerResults: found differences in 3 / 46 workflows

[perrotta]

backport of #42250

[perrotta]

+1
(This was signed by fastsim in all other release cycles, I assume it would be also approved in 13_1_X)

[perrotta]

merge