editor.keyboard.add Binding Backspace execution is not expected

[boomsi]

Steps for Reproduction

1. Visit [quilljs.com, jsfiddle.net, codepen.io]
2. Step Two
3. Step Three

editor.keyboard.addBinding({
      key: "Backspace",
      handler: function (range) {
        console.log("Custom backspace handler");
        console.log(range);
        if (range.length > 0) { // Never execute!!!
          // If text is selected, apply red color to the selection instead of deleting
          editor.formatText(range.index, range.length, "color", "red");
        } else {
          // If no text is selected, apply red color to the character before the cursor
          let format = editor.getFormat(range.index - 1, 1);
          if (format.color === "red") {
            // If already red, remove it (toggle behavior)
            editor.formatText(range.index - 1, 1, "color", false);
          } else {
            // Apply red color
            editor.formatText(range.index - 1, 1, "color", "red");
          }
        }

        return false; // Do not delete the character/text
      },
    });

Expected behavior:

All backspace events are captured

Actual behavior:

It is captured only if there is no check, and the handler is not executed if there is a check.

Platforms:

MacOS: 13.4.1
Chrome: "123.0.6xxxx"
"quill": "2.0.0-rc.5"
"React": "18.2.0"

Include browser, operating system and respective versions

Version:

Run Quill.version to find out