!B (Sandbox) (CE-17809) Opening a level through the asset browser wil…

…l set the wrong level path. When saving the level, Legacy code in mission, terrain, vegetation, etc will fail to resolve the path

Copied from Perforce
 Change: 1835134

Code/Sandbox/EditorQt/LevelEditor/LevelAssetType.cpp

@@ -122,8 +122,8 @@ CAssetEditor* CLevelType::Edit(CAsset* pAsset) const
 {
  // Editing the level type presents a special case, as it does not return an asset editor.
  // Instead we load the level.
-
- CCryEditApp::GetInstance()->LoadLevel(pAsset->GetFile(0));
+ auto levelFullPath = PathUtil::Make(PathUtil::GetGameProjectAssetsPath(), pAsset->GetFile(0));
+ CCryEditApp::GetInstance()->LoadLevel(PathUtil::AbsolutePathToCryPakPath(levelFullPath));
 
  return nullptr;
 }