Fix two small issues with seanet layers in streaming mode.

rust/moshi-core/src/seanet.rs

@@ -117,7 +117,7 @@ impl Module for SeaNetResnetBlock {
 
 impl StreamingModule for SeaNetResnetBlock {
     fn reset_state(&mut self) {
-        // TODO(laurent): self.skip_op should probably be resetted here.
+        self.skip_op.reset_state();
         for block in self.block.iter_mut() {
             block.reset_state()
         }
@@ -132,12 +132,9 @@ impl StreamingModule for SeaNetResnetBlock {
         for block in self.block.iter_mut() {
             ys = block.step(&ys.apply(&self.activation)?)?;
         }
-        match self.shortcut.as_ref() {
+        match self.shortcut.as_mut() {
             None => self.skip_op.step(&ys, xs),
-            Some(shortcut) => {
-                // TODO(laurent): shouldn't this use shortcut.step(xs) instead?
-                self.skip_op.step(&ys, &xs.apply(shortcut)?)
-            }
+            Some(shortcut) => self.skip_op.step(&ys, &shortcut.step(xs)?),
         }
     }
 }