Filters list buggy

When adding directories to the filters list, I find that it is not always consistent with how it works. If I click wp-content to expand it for instance (so that I can choose /uploads for example), while I am not trying to filter out the entire directory wp-content, it adds it to the filter list anyway.

This requires me to manually delete the wp-content/ directory from the filters list, then add uploads to that.

Ideally a filtered folder or item would only happen once you hit that red circular icon next to the list, not the text itself.

I am using Firefox on Win10.

Thanks!