IOVDbMetaDataTools: Clean up overrideIOV.

IOVDbMetaDataTool::overrideIOV doesn't actually need to be declared as not thread-safe. Instead of copying the input collection, we can modify the IOVs in place.

This merge request affects 1 package:

• Database/IOVDbMetaDataTools

Adding @ssnyder as watcher

added Database JetEtmiss master review-pending-level-1 labels

CI Result SUCCESS (hash 2b6aea66)

	Athena	AthSimulation	AnalysisBase	AthGeneration
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 12077]

Looks good and the CI is fine. Approving. Clara (L1)

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

merged

mentioned in commit 09becb35

added sweep:ignore label