( PP-OCRv4_det_cml.yml ) architecture question

[csj3684]

Thanks for your great works.

I've been training with PP-OCRv4_det_cml.yml and I cannot understand the usage of

1. config["Architecture"]["Models"]["Student"]['Backbone"]["pretrain"]

2. config["Architecture"]["Models"]["Student2"]['Backbone"]["pretrain"]

they use "PPLCNetV3" and I checked that it does not use "pretrain" parameter in class "PPLCNetV3" and when build backbone in "BaseModel", it also does not use that parameter.

Is it just side effect of generalization of config file ?

thank you.