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Check if a trend can be resumed in SliceTrendingTask - #2682

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Check if a trend can be resumed in SliceTrendingTask#2682
knopers8 wants to merge 1 commit into
AliceO2Group:masterfrom
knopers8:slice-trending-protect-resume

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@knopers8 knopers8 commented Aug 17, 2026

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Fixes QC-1300, where it was reported that a change in axisDivision of a resumed trend would cause a difficult to understand crash, with an STL exception only, but no stack trace leading to it.

While std::exceptions (such as these thrown by STL) do not contain stacktraces, improvements may or may not come in the scope of QC-247.

canContinueTrend is based on a similar function in TrendingTask:

bool TrendingTask::canContinueTrend(TTree* tree)

Fixes QC-1300, where it was reported that a change in axisDivision of a resumed trend would cause a difficult to understand crash, with an STL exception only, but no stack trace leading to it.

While std::exceptions (such as these thrown by STL) do not contain stacktraces, improvements may or may not come in the scope of QC-247.
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