Program: 81793
Project: 81793
Buggy source:
public static void modelBakeEvent(ModelBakeEvent event){
  boolean replaceVanillaModels=ConfigCoroAI.foliageShaders && EventHandler.queryUseOfShaders();
  boolean textureFix=false;
  if (replaceVanillaModels) {
    Map<ModelResourceLocation,IModel> stateModels=ReflectionHelper.getPrivateValue(ModelLoader.class,event.getModelLoader(),"String_Node_Str");
    IBakedModel blank=event.getModelRegistry().getObject(new ModelResourceLocation("String_Node_Str","String_Node_Str"));
    for (    ModelResourceLocation res : event.getModelRegistry().getKeys()) {
      IBakedModel bakedModel=event.getModelRegistry().getObject(res);
      IModel model=stateModels.get(res);
      Set<ResourceLocation> textures=Sets.newHashSet(model.getTextures());
      escape:       if (!res.getVariant().equals("String_Node_Str")) {
        for (        FoliageReplacerBase replacer : listFoliageReplacers) {
          for (          TextureAtlasSprite sprite : replacer.sprites) {
            for (            ResourceLocation res2 : textures) {
              if (res2.toString().equals(sprite.getIconName())) {
                if (!res.toString().contains("String_Node_Str")) {
                  if (textureFix) {
                    if (blank.getOverrides() instanceof AnimationItemOverrideList) {
                      AnimationItemOverrideList obj1=(AnimationItemOverrideList)blank.getOverrides();
                      IModel model1=ReflectionHelper.getPrivateValue(AnimationItemOverrideList.class,obj1,"String_Node_Str");
                      if (vanillaModelWrapperClass.isAssignableFrom(model1.getClass())) {
                        ModelBlock model2=(ModelBlock)ReflectionHelper.getPrivateValue(vanillaModelWrapperClass,model1,"String_Node_Str");
                        String tex=res2.toString().split("String_Node_Str")[1];
                        model2.textures.put("String_Node_Str",tex);
                      }
                    }
                  }
                  event.getModelRegistry().putObject(res,blank);
                  break escape;
                }
              }
            }
          }
        }
      }
    }
  }
}

Fixed version (ground truth):
public static void modelBakeEvent(ModelBakeEvent event){
  boolean replaceVanillaModels=ConfigCoroAI.foliageShaders && EventHandler.queryUseOfShaders();
  boolean textureFix=false;
  if (replaceVanillaModels) {
    Map<ModelResourceLocation,IModel> stateModels=ReflectionHelper.getPrivateValue(ModelLoader.class,event.getModelLoader(),"String_Node_Str");
    IBakedModel blank=event.getModelRegistry().getObject(new ModelResourceLocation("String_Node_Str","String_Node_Str"));
    for (    ModelResourceLocation res : event.getModelRegistry().getKeys()) {
      IBakedModel bakedModel=event.getModelRegistry().getObject(res);
      IModel model=stateModels.get(res);
      if (model != null) {
        Set<ResourceLocation> textures=Sets.newHashSet(model.getTextures());
        escape:         if (!res.getVariant().equals("String_Node_Str")) {
          for (          FoliageReplacerBase replacer : listFoliageReplacers) {
            for (            TextureAtlasSprite sprite : replacer.sprites) {
              for (              ResourceLocation res2 : textures) {
                if (res2.toString().equals(sprite.getIconName())) {
                  if (!res.toString().contains("String_Node_Str")) {
                    if (textureFix) {
                      if (blank.getOverrides() instanceof AnimationItemOverrideList) {
                        AnimationItemOverrideList obj1=(AnimationItemOverrideList)blank.getOverrides();
                        IModel model1=ReflectionHelper.getPrivateValue(AnimationItemOverrideList.class,obj1,"String_Node_Str");
                        if (vanillaModelWrapperClass.isAssignableFrom(model1.getClass())) {
                          ModelBlock model2=(ModelBlock)ReflectionHelper.getPrivateValue(vanillaModelWrapperClass,model1,"String_Node_Str");
                          String tex=res2.toString().split("String_Node_Str")[1];
                          model2.textures.put("String_Node_Str",tex);
                        }
                      }
                    }
                    event.getModelRegistry().putObject(res,blank);
                    break escape;
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}