Bug? 48px wide label div

When I add a List field, and enable multiple columns, it will automatically create 3 columns.
Now when I define 1 (one) in the Maximum Rows settings field, then save/update the form, it will create a grid layout for the labels with the last label div being exactly 48px wide.

But this happens only if I set the Maximum Rows to 1.

I’m sure this is a bug. Quite annoying.

The generated CSS looks like this:

.gform_wrapper.gravity-theme .gfield_header_item:last-child, .gform_wrapper.gravity-theme .gfield_list_icons {
    width: 48px;
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;