Created by: iceriver97

在使用 OCRNet配置文件时，有参数

OCR_MID_CHANNELS: 512
OCR_KEY_CHANNELS: 256

但在执行 check.py 校验数据集时,报错： KeyError: 'Non-existent config key: MODEL.HRNET.OCR_MID_CHANNELS' 完整报错信息：

Traceback (most recent call last):
  File "/home/aistudio/PaddleSeg/pdseg/utils/collect.py", line 88, in update_from_segconfig
    self.__setattr__(key, value, create_if_not_exist=False)
  File "/home/aistudio/PaddleSeg/pdseg/utils/collect.py", line 45, in __setattr__
    t.__getattr__(keylist[-1], create_if_not_exist)
  File "/home/aistudio/PaddleSeg/pdseg/utils/collect.py", line 54, in __getattr__
    raise KeyError
KeyError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./PaddleSeg/pdseg/check.py", line 657, in <module>
    main(args)
  File "./PaddleSeg/pdseg/check.py", line 626, in main
    cfg.update_from_file(args.cfg_file)
  File "/home/aistudio/PaddleSeg/pdseg/utils/collect.py", line 150, in update_from_file
    self.update_from_segconfig(dic)
  File "/home/aistudio/PaddleSeg/pdseg/utils/collect.py", line 90, in update_from_segconfig
    raise KeyError('Non-existent config key: {}'.format(key))
KeyError: 'Non-existent config key: MODEL.HRNET.OCR_MID_CHANNELS'