Fix appending a new block to input_blocks

TTS/tts/layers/matcha_tts/UNet.py

@@ -76,7 +76,7 @@ class UNet(nn.Module):
         )
 
         self.input_blocks = nn.ModuleList([])
-        block_in_channels = in_channels
+        block_in_channels = in_channels * 2
         for _ in range(num_blocks):
             block = nn.ModuleList([])
 
@@ -88,6 +88,8 @@ class UNet(nn.Module):
                 )
             )
 
+            self.input_blocks.append(block)
+
         self.middle_blocks = nn.ModuleList([])
         self.output_blocks = nn.ModuleList([])