Fix prop_vehicle_jeep_old not breaking item crates#512

Blixibon wants to merge 1 commit intomapbase-source:developmapbase-source/source-sdk-2013:developfrom

Blixibon:mapbase/feature/old-jeep-crate-fixBlixibon/source-sdk-2013:mapbase/feature/old-jeep-crate-fixCopy head branch name to clipboard