Always using TPC tracks to fill histograms and bug fix

[chiarazampolli]

@noferini : I have not yet tested the effect of this change locally, but it should be the correct way to do.

[chiarazampolli]

Hello @Barthelemy ,

I cannot find the relevant error in the o2 built, and the one for macOS is unrelated. This PR is needed for the async pass, could you take a look?

Thanks!

Chiara

[knopers8]

@ktf @TimoWilken @MichaelLettrich O2 build seems to "successfully fail" while the macOS one fails with:

CMake Error at /System/Volumes/Data/build/ci_checks/alice_ci_0/qualitycontrol-o2/sw/BUILD/f36ce76dfc29bc3106d4625ee1080438dd352065/ROOT/XROOTD-prefix/src/XROOTD-stamp/XROOTD-build-RELWITHDEBINFO.cmake:49 (message):
  Command failed: 2

   '/usr/local/bin/gmake'

  See also

    /System/Volumes/Data/build/ci_checks/alice_ci_0/qualitycontrol-o2/sw/BUILD/f36ce76dfc29bc3106d4625ee1080438dd352065/ROOT/XROOTD-prefix/src/XROOTD-stamp/XROOTD-build-*.log

Could you please have a look?

[chiarazampolli]

Please, do not merge yet.

[chiarazampolli]

PR ready to be merged from my side (if approved).

[chiarazampolli]

MacOS failure not related, if there is nothing against it, I would ask that the PR is merged to enter the earliest nightly to be then used for the final test before the central async reco.

Chiara