Added protection for invalid GhostTrackStates (94X)

[ferencek]

Backport of #21120

[cmsbuild]

A new Pull Request was created by @ferencek (Dinko Ferencek) for CMSSW_9_4_X.

It involves the following packages:

RecoVertex/GhostTrackFitter

@perrotta, @cmsbuild, @slava77 can you please review it and eventually sign? Thanks.
@makortel, @felicepantaleo, @GiacomoSguazzoni, @rovere, @VinInn, @ebrondol, @dgulhan this is something you requested to watch as well.
@davidlange6, @slava77 you are the release manager for this.

cms-bot commands are listed here

• Backported from Added protection for invalid GhostTrackStates #21120

[perrotta]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/24151/console Started: 2017/11/03 11:11

[cmsbuild]

+1
Tested at: 22ebd08
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-21143/24151/summary.html

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:
dafc5c3
You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-21143/24151/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-21143/24151/git-merge-result

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-21143/24151/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 26
• DQMHistoTests: Total histograms compared: 2838442
• DQMHistoTests: Total failures: 105
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2838166
• DQMHistoTests: Total skipped: 171
• DQMHistoTests: Total Missing objects: 0
• Checked 107 log files, 10 edm output root files, 26 DQM output files

[perrotta]

+1

• Bug fix identical to the one in Added protection for invalid GhostTrackStates #21120 , just merged in the master

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_9_4_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_10_0_X is complete. This pull request will now be reviewed by the release team before it's merged. @davidlange6, @slava77, @smuzaffar (and backports should be raised in the release meeting by the corresponding L2)

[ferencek]

Would it make sense to also backport to 92X?

[perrotta]

Given that the original report of this issue (https://hypernews.cern.ch/HyperNews/CMS/get/physTools/3574.html) was referring to 92X, I would say yes... Dinko Ferencek <notifications@github.com> ha scritto:

…

Would it make sense to also backport to 92X? -- You are receiving this because you were mentioned. Reply to this email directly or view it on GitHub: #21143 (comment)

[davidlange6]

merge