Line chart ignores beginAtZero if no y-values are present

[bart-blommaerts]

In ChartJS 2.1.0 a line chart ignores the beginAtZero option, if no y-values are present. This was also mentioned in #1581 (comment) . I want to avoid having negative values.

Config:

                type: 'line',
                options: {
                    scales: {
                        yAxes: [{
                            ticks: {
                                beginAtZero: true
                            }
                        }],
                        xAxes: [{
                            gridLines: {
                                display: false
                            }
                        }]
                    },
                    responsive: true,
                    maintainAspectRatio: false
                }

Screenshot:

[bart-blommaerts]

Works as expected in 2.1.2. Thanks for the quick fix.