Loading same mesh twice segfaults with ogre2.

[Levi-Armstrong]

Environment

• OS Version: Ubuntu 20.04
• Source or binary build: Binary rendering6

Description

When using the MeshManager to load the same mesh twice it segfaults with Ogre2.

Steps to reproduce

        ignition::rendering::MeshDescriptor descriptor;
        descriptor.meshName = resource->getFilePath();
        ignition::common::MeshManager* mesh_manager = ignition::common::MeshManager::Instance();
        descriptor.mesh = mesh_manager->Load(descriptor.meshName);
        ignition::rendering::MeshPtr mesh_geom = scene.CreateMesh(descriptor);
        mesh_geom = scene.CreateMesh(descriptor); // REMOVE

Output

segfault

/var/lib/jenkins/workspace/ogre-2.2-debbuilder/repo/OgreMain/src/OgreHlmsDatablock.cpp:198: virtual Ogre::HlmsDatablock::~HlmsDatablock(): Assertion `mLinkedRenderables.empty() && "This Datablock is still being used by some Renderables." " Change their Datablocks before destroying this."' failed.

[Levi-Armstrong]

There is no issue when using ogre render engine.

[iche033]

#807 should fix the bug

[Levi-Armstrong]

Thanks for the quick turnaround.