Account for non-vanilla item definitions in block breaking.

Author: oryxel1

core/src/main/java/org/geysermc/geyser/registry/populator/ItemRegistryPopulator.java

@@ -651,6 +651,7 @@ public static void populate() {
                     .customItemDefinitions(null)
                     .build();
 
+            final List<Integer> nonVanillaCustomItemIds = new ArrayList<>();
             if (customItemsAllowed) {
                 // Add furnace minecart
                 int furnaceMinecartId = nextFreeBedrockId++;
@@ -695,6 +696,8 @@ public static void populate() {
                         mappings.set(javaItem.javaId(), mapping);
                         registry.put(customItemId, mapping.getBedrockDefinition());
 
+                        nonVanillaCustomItemIds.add(javaItem.javaId());
+
                         if (customItem.bedrockOptions().creativeCategory() != CreativeCategory.NONE) {
                             CreativeItemData creativeItemData = new CreativeItemData(ItemData.builder()
                                 .definition(registration.mapping().getBedrockDefinition())
@@ -770,6 +773,7 @@ public static void populate() {
                     .lightBlocks(lightBlocks)
                     .lodestoneCompass(lodestoneEntry)
                     .customIdMappings(customIdMappings)
+                    .nonVanillaCustomItemIds(nonVanillaCustomItemIds)
                     .customBlockItemDefinitions(customBlockItemDefinitions)
                     .build();
 

core/src/main/java/org/geysermc/geyser/registry/type/ItemMappings.java

@@ -74,6 +74,8 @@ public class ItemMappings implements DefinitionRegistry<ItemDefinition> {
     List<ItemDefinition> boats;
     Int2ObjectMap<String> customIdMappings;
 
+    List<Integer> nonVanillaCustomItemIds;
+
     Object2ObjectMap<CustomBlockData, ItemDefinition> customBlockItemDefinitions;
 
     /**

core/src/main/java/org/geysermc/geyser/session/cache/BlockBreakHandler.java

@@ -323,7 +323,7 @@ protected void handleStartBreak(@NonNull Vector3i position, @NonNull BlockState
 
             this.serverSideBlockBreaking = false;
             if (BlockRegistries.NON_VANILLA_BLOCK_IDS.get().get(state.javaId()) || blockStateOverride != null ||
-                customItem != null || (skull != null && skull.getBlockDefinition() != null)) {
+                customItem != null || session.getItemMappings().getNonVanillaCustomItemIds().contains(item.getJavaId()) || (skull != null && skull.getBlockDefinition() != null)) {
                 this.serverSideBlockBreaking = true;
             }