Send initial channels with Neo configuration

Fixes an issue where sendable configuration channels were not yet received during ServerConfigurationConnectionEvents.CONFIGURE, resulting in ServerConfigurationNetworking.canSend returning false.

Author: Su5eD

fabric-networking-api-v1/src/client/java/net/fabricmc/fabric/mixin/networking/client/ClientNetworkRegistryMixin.java

@@ -1,14 +1,20 @@
 package net.fabricmc.fabric.mixin.networking.client;
 
+import java.util.HashSet;
+import java.util.Set;
+
 import net.neoforged.neoforge.client.network.registration.ClientNetworkRegistry;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 import net.minecraft.network.protocol.common.ClientCommonPacketListener;
 import net.minecraft.network.protocol.common.ClientboundCustomPayloadPacket;
+import net.minecraft.resources.Identifier;
 
+import net.fabricmc.fabric.api.client.networking.v1.ClientConfigurationNetworking;
 import net.fabricmc.fabric.impl.networking.NetworkingImpl;
 
 @Mixin(ClientNetworkRegistry.class)
@@ -19,4 +25,11 @@ private static void preventDisconnect(ClientCommonPacketListener listener, Clien
 			ci.cancel();
 		}
 	}
+
+	@ModifyVariable(method = "sendInitialListeningChannels", at = @At(value = "STORE"))
+	private static Set<Identifier> sendInitialFabricChannels(Set<Identifier> nowListeningOn) {
+		Set<Identifier> withFabricChannels = new HashSet<>(nowListeningOn);
+		withFabricChannels.addAll(ClientConfigurationNetworking.getGlobalReceivers());
+		return withFabricChannels;
+	}
 }

ffapi.gradle.properties

@@ -1,4 +1,4 @@
-implementationVersion=3.2.5
+implementationVersion=3.2.6
 
 versionMc=26.1.2
 versionNeoForge=26.1.2.76