message: Initialize useLegacyMorphing to fix MSAN warning
diff: @@ -488,6 +488,7 @@ void MaterialBuilder::prepareToBuild(MaterialInfo& info) noexcept {
  info.reflectionMode = mReflectionMode;
  info.quality = mShaderQuality;
  info.hasCustomSurfaceShading = mCustomSurfaceShading;
  + info.useLegacyMorphing = mUseLegacyMorphing;
  }
  bool MaterialBuilder::findProperties(filament::backend::ShaderType type,
  @@ -937,7 +938,7 @@ Package MaterialBuilder::build(JobSystem& jobSystem) noexcept {
  }
  // prepareToBuild must be called first, to populate mCodeGenPermutations.
  - MaterialInfo info;
  + MaterialInfo info {};
  prepareToBuild(info);
  // Run checks, in order.
  