Minor UI bug in LLM Usage page

A minor bug on the LLM usage page. When you create a new LLM model and run a test for it, it shows up in the usage report under llm_validator, but since there’s no name of the llm as yet the model name shows up in the filter list (no LLM name), in this case moonshotai

However after selecting it, the dropdown filter changes to 0 instead of moonshotai and all the statistics show up as 0