'instance_seg' and 'direction_pred' both use 'self.up1_embedded.' is it intended?

[minhyeok-heo]

I just found that --direction-pred only works when --instance-seg is activated

because direction_pred and instance_seg share the self.up1_embedded layer

HDMapNet/model/base.py

Line 131 in 7911227

x_direction = self.up1_embedded(x2, x1)

i guessed it is kinda typo. because there is another layer designed for direction_pred, 'self.up1_direction'. but never used

HDMapNet/model/base.py

Line 102 in 7911227

self.up1_direction = Up(64 + 256, 256, scale_factor=4)