Issue with named list in select2input

[bradddd]

I'm wanting to use something like the following in a select2input for the choices

choices = list(
               "Group 1"=1,
               "Group 2"=2,
               "Group 3"=3,
               "Group 4"=4
                )

I'm expecting it to present "Group 1" or "Group 3" and have the underlying 1 & 3 values upon selection, but instead, I'm not seeing the string names for the list, just the underlying integer values.

This is how I would setup a checkboxGroupInput. I also tried doing it using setNames to generate the named list, but it's still not working.

Is this a bug, or am I missing something?