message: Don't try to initialise texture when structured exporting on GL
diff: @@ -1352,7 +1352,7 @@ bool GLResourceManager::Serialise_InitialState(SerialiserType &ser, ResourceId i
  // only continue with serialising the contents if the format is valid (storage allocated).
  // Otherwise this texture has no initial state to apply
  - if(TextureState.internalformat != eGL_NONE && !ser.IsErrored())
  + if(TextureState.internalformat != eGL_NONE && !ser.IsErrored() && !IsStructuredExporting(m_State))
  {
  WrappedOpenGL::TextureData &details =
  ser.IsWriting() ? m_Driver->m_Textures[id] : m_Driver->m_Textures[GetLiveID(id)];
  