Fix memory leak in FastTSGFromPropagation

[Dr15Jones]

Leak found by valgrind.

[cmsbuild]

A new Pull Request was created by @Dr15Jones (Chris Jones) for CMSSW_9_0_X.

It involves the following packages:

FastSimulation/Muons

@ssekmen, @lveldere, @civanch, @mdhildreth, @cmsbuild, @davidlange6 can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @matt-komm this is something you requested to watch as well.
@slava77, @smuzaffar you are the release manager for this.

cms-bot commands are listed here #13028

[Dr15Jones]

As far as I can tell the build virtual function takes a const pointer and the underlying implementation clones the hit.

[Dr15Jones]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/16793/console

[cmsbuild]

+1
Tested at: 0613f76
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16877/16793/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16877/16793/summary.html

The workflows 1003.0, 1001.0, 1000.0, 140.53, 136.731, 4.22 have different files in step1_dasquery.log than the ones found in the baseline. You may want to check and retrigger the tests if necessary. You can check it in the "files" directory in the results of the comparisons