AthenaPoolCnvSvc: Fix exception safety in AthenaRootSerializeSvc::deserialize.

If ROOT I/O throws an exception, then the TBufferFile will end up deleting the buffer passed to us, which is an error. Fix by not having the TBufferFile adpot the provided buffer.

This merge request affects 1 package:

• Database/AthenaPOOL/AthenaPoolCnvSvc

This merge request affects 1 file:

• Database/AthenaPOOL/AthenaPoolCnvSvc/src/AthenaRootSerializeSvc.cxx

Adding @mnowak ,@ssnyder as watchers

added Database master review-pending-level-1 labels

CI Result SUCCESS (hash be8e6273)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 52076]

added review-approved label and removed review-pending-level-1 label

Changes and CI look fine. Approving.

Kira (L1)

merged

mentioned in commit 5e1135cf

added sweep:ignore label