The loss is abnormal when the height and widht of BEV feature is not equal

[comwireless]

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[comwireless]

https://github.com/XuyangBai/TransFusion/blob/master/mmdet3d/models/dense_heads/transfusion_head.py#L759, I think the line should be meshgrid = [[0, y_size - 1, y_size], [0, x_size - 1, x_size]]], if the x_size != y_size