Update L. 116 of backbone.py #999
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When fine-tuning the network for our own problem, we encountered the error RuntimeError: one of the variables needed for gradient computation has been modified by an inplace operation: [torch.cuda.FloatTensor [32, 768, 248]]. This seemed to be triggered by the in place operation occuring L. 116. To solve this we replaced `x += x_conv` by `x = x.clone() + x_conv`
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When fine-tuning the network for our own problem, we encountered the error RuntimeError: one of the variables needed for gradient computation has been modified by an inplace operation: [torch.cuda.FloatTensor [32, 768, 248]].
This seemed to be triggered by the in place operation occuring L. 116. To solve this we replaced
x += x_convbyx = x.clone() + x_conv