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Biographical profiling broken in 7.2.1

I am trying to profile a program, and when I look at the biographical profile the trace contains records like this:

BEGIN_SAMPLE 0.30
VOID    643630488
LAG     18446744073156607560
USE     18446744073429600120
INHERENT_USE    12492984
DRAG    314533424
END_SAMPLE 0.30

The LAG and USE fields are too large, so it looks like something has wrapped around.

Trac metadata
Trac field Value
Version 7.2.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Profiling
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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