just ran it with PyTorch 1.6.0
my output is:
x.shape: torch.Size([1, 10, 26, 26])
embedding model: Sequential(
  (0): Conv2d(10, 10, kernel_size=(5, 5), stride=(1, 1), padding=(4, 4), padding_mode=circular)
  (1): ReLU()
)
embedding(x).shape: torch.Size([1, 10, 30, 30])