[bugfix]: offline QA: ECbmRecoMode::Timeslice as a default for data processing in the CbmQaTask class

In the CbmQaTask the two regimes of input data branches handling are available: loops within CbmEvent objects (ECbmRecoMode::EventByEvent) and loop over entire timeslice (ECbmRecoMode::Timeslice). Previously, the first regime was selected by default, what led to the repeated filling of the histograms in the CA input QA and the CA setup QA. Now this regime should be enabled explicitly in the constructor of the task if the access to the CbmEvent objects and hit/track indices within them is available in the particular QA-task.

added BugFix QA labels

requested review from @a.senger

assigned to @se.gorbunov

mentioned in merge request !1835 (merged)

approved this merge request

@s.zharko,

thanks for puting the fix in a separate MR. From my side the MR looks okay.

Dear @se.gorbunov, @s.zharko, @f.uhlig, @p.-a.loizeau,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

approved this merge request

@se.gorbunov,

please merge this one before !1835 (merged).

merged