fix stacked efficiency plots

[mtosi]

PR description:

as reported in the conversation of #28622
since 11_1_0_pre3 the efficiency plot in the DQM have the TH1::kIsAvarage bit set,
which prevents the efficiency histograms to be used in the proper way by the THStack
(by adding the different histograms the results is not the sum, but their average)
this PR fixes the handling of these plots in the TRK POG script

if this PR is a backport please specify the original PR and why you need to backport that PR:

I'm going to make the backport to 111X for making the proper plots for the HLT TDR (for completeness and avoiding patch/private code)

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-30453/16586

• This PR adds an extra 24KB to repository

[cmsbuild]

A new Pull Request was created by @mtosi (mia tosi) for master.

It involves the following packages:

Validation/RecoTrack

@andrius-k, @kmaeshima, @schneiml, @cmsbuild, @jfernan2, @fioriNTU can you please review it and eventually sign? Thanks.
@makortel, @felicepantaleo, @GiacomoSguazzoni, @JanFSchulte, @rovere, @VinInn, @wmtford, @ebrondol, @dgulhan this is something you requested to watch as well.
@silviodonato, @dpiparo you are the release manager for this.

cms-bot commands are listed here

[jfernan2]

please test

[cmsbuild]

The tests are being triggered in jenkins.

• CMSSW_11_2_X_2020-06-29-1100/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/7495/console Started: 2020/06/29 20:27

[cmsbuild]

+1
Tested at: 767532a
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3fc3f5/7495/summary.html
CMSSW: CMSSW_11_2_X_2020-06-29-1100
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3fc3f5/7495/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 2 differences found in the comparisons
• DQMHistoTests: Total files compared: 36
• DQMHistoTests: Total histograms compared: 2778915
• DQMHistoTests: Total failures: 5
• DQMHistoTests: Total nulls: 1
• DQMHistoTests: Total successes: 2778859
• DQMHistoTests: Total skipped: 50
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.004 KiB( 35 files compared)
• DQMHistoSizes: changed ( 10224.0 ): 0.004 KiB MessageLogger/Warnings
• Checked 152 log files, 16 edm output root files, 36 DQM output files

[jfernan2]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @silviodonato, @dpiparo (and backports should be raised in the release meeting by the corresponding L2)

[silviodonato]

+1