MuonGeoModel: Fix double-deletions.
MuonDetectorManager takes ownership of objects held by the maps passed to the various update* methods, so need to copy them.
Should address ATLASRECTS-5344 and ATLASRECTS-5345.
Edited by Mark Hodgkinson
MuonDetectorManager takes ownership of objects held by the maps passed to the various update* methods, so need to copy them.
Should address ATLASRECTS-5344 and ATLASRECTS-5345.