converter tool branching error?

branchingerror.json

"steps": [
    {
      "url": "/shared/activity-with-a-line-construction-tool/page/1-this-is-the-first-page/step/1",
      "activityPage": "/shared/activity-with-a-line-construction-tool/page/1-this-is-the-first-page",
      "beforeText": "Construct a line with y-interept 0.0, with slope 1.0",
      "...":"...",
      "submitButtonTitle": "Check My Answer",
      "defaultBranch": "/shared/activity-with-a-line-construction-tool/page/1-this-is-the-first-page/step/5",
      "...":"...",
      "responseBranches": [
        {
          "criterion": [
            "and",
            [
              "withinAbsTolerance",
              1,
              [
                "lineSlope",
                "freehand-sketch-1",
                "1"
              ],
              0.1
            ],
            [
              "withinAbsTolerance",
              0,
              [
                "yIntercept",
                "freehand-sketch-1",
                "1"
              ],
              0.1
            ]
          ],
          "step": "/shared/activity-with-a-line-construction-tool/page/1-this-is-the-first-page/step/2"
        },
        "...":"..." }]
    },
    {
      "url": "/shared/activity-with-a-line-construction-tool/page/1-this-is-the-first-page/step/2",
      "activityPage": "/shared/activity-with-a-line-construction-tool/page/1-this-is-the-first-page",
      "beforeText": "<b>Incorrect. Try again.</b><p>Construct a line with y-interept 0.0, with slope 1.0</p>",
      "...":"..."
}]

It seems like all of the response branches need a "not" operator on them. For example in the gist above:

I would expect if:
( withinAbsTolerance (1, ('lineslope', 'freehand-sketch-1', '1'), 0.1) && withinAbsTolerance (0,('yIntercept', 'freehand-sketch-1', '1'), 0.1))

Evaluated to true, we would go the correct page. But instead we go to the 'everything wrong' page...