Allow selectors to return no matches.

I have a selector on an `hx-include` that looks like this: `input[name=pk]` where the inputs are 0 to N checkboxes. When there are 0 checkboxes I would like the behavior to be the same as if you had N checkboxes where none were selected. The request succeeds but i get this error in the console: The selector "image[name=pk]" on hx-include returned no matches! It would be nice to have a way to disable this error. Would it be possible to get a ` optional:true` tag so that these errors don't pollute the console?