Better fix to handle the error in the PVsorting (76X PR)

[arizzi]

same as #10344

[cmsbuild]

A new Pull Request was created by @arizzi for CMSSW_7_6_X.

Better fix to handle the error in the PVsorting (76X PR)

It involves the following packages:

CommonTools/RecoAlgos

@cmsbuild, @cvuosalo, @slava77 can you please review it and eventually sign? Thanks.
@rappoccio, @jdolen, @makortel, @abbiendi, @jhgoh, @ahinzmann this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
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If you are a L2 or a release manager you can ask for tests by saying 'please test' in the first line of a comment.
@Degano you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[slava77]

[I'm not asking for tests here yet because of the broken IB]

[davidlange6]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

+1
Tested at: 5ba3ce3
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10347/11492/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-10347/11492/summary.html

[slava77]

+1

for #10347 5ba3ce3

• the same code change as in Better fix to handle the error in the PVsorting #10344 5ba3ce3
• signed based on observations in Better fix to handle the error in the PVsorting #10344