colorShader kept and not reused after serialization of LinesMesh

[Evgeni_Popov]

Fixed in the same PR than:

colorShader and colorShaderOccQuery kept after serialize

The two shaders used by the bounding box renderer are not flagged as doNotSerialize. If you don’t want to serialize them, you can set doNotSerialize=true: [EDIT] You’re right, though, that we should not serialize them in the first place, so here’s the PR: