Update BlockEntityTypeMixin.java

src/main/java/net/frozenblock/lib/core/mixin/BlockEntityTypeMixin.java

@@ -17,6 +17,7 @@
 
 package net.frozenblock.lib.core.mixin;
 
+import com.llamalad7.mixinextras.injector.ModifyReturnValue;
 import net.minecraft.world.level.block.CeilingHangingSignBlock;
 import net.minecraft.world.level.block.StandingSignBlock;
 import net.minecraft.world.level.block.WallHangingSignBlock;
@@ -25,24 +26,23 @@
 import net.minecraft.world.level.block.state.BlockState;
 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.callback.CallbackInfoReturnable;
 
 @Mixin(BlockEntityType.class)
 public class BlockEntityTypeMixin {
 
 	/**
 	 * This allows custom sign and hanging sign blocks to be added to their block entities
 	 */
-	@Inject(method = "isValid", at = @At("RETURN"), cancellable = true)
-	private void isValid(BlockState state, CallbackInfoReturnable<Boolean> info) {
+	@ModifyReturnValue(method = "isValid", at = @At("RETURN"))
+	private boolean frozenLib$isValid(boolean original, BlockState state) {
 		var type = BlockEntityType.class.cast(this);
 
 		if ((type == BlockEntityType.SIGN &&
 			(state.getBlock() instanceof StandingSignBlock || state.getBlock() instanceof WallSignBlock))
 			|| (type == BlockEntityType.HANGING_SIGN
 			&& (state.getBlock() instanceof CeilingHangingSignBlock || state.getBlock() instanceof WallHangingSignBlock))) {
-			info.setReturnValue(true);
+			return true;
 		}
+		return original;
 	}
 }