Sweeping !42973 from 21.6 to master. Making sure MGC cleans up copies of events

Making sure MGC cleans up copies of events

See merge request !42973 (merged)

added sweep:from 21.6 label

Adding original author @zmarshal as watcher.

WARNING: big files (>100K) are found in the changeset

116K in file Generators/MadGraphControl/python/MadGraphUtils.py

This merge request affects 2 packages:

• Control/CxxUtils
• Generators/MadGraphControl

Affected files list will not be printed in this case

Adding @zmarshal ,@ssnyder ,@rbianchi as watchers

added Core Generators master review-pending-level-1 labels

CI Result SUCCESS (hash aec8550f)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
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
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 32562]

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

merged

mentioned in commit d1ecae1d

added sweep:ignore label