Add check to ensure all conditions have a payload for time point 0
This is a backport of !125 (merged) plus a fix for missing 0
value in LHC condition.
This fixes the segfault discussed in lhcb/Detector!418 (comment 7781736)
This is a backport of !125 (merged) plus a fix for missing 0
value in LHC condition.
This fixes the segfault discussed in lhcb/Detector!418 (comment 7781736)