Fixed #11465

core/src/mindustry/mod/DataPatcher.java

@@ -370,10 +370,10 @@ public class DataPatcher{
                     Reflect.set(fobj, fdata.field, fv);
                 }, value, true);
             }else if(value instanceof JsonValue jsv && object instanceof Block bl && jsv.isObject() && field.equals("consumes")){
-                modifiedField(bl, "consumeBuilder", Reflect.<Seq<Consume>>get(Block.class, bl, "consumeBuilder").copy());
+                Seq<Consume> prevBuilder = Reflect.<Seq<Consume>>get(Block.class, bl, "consumeBuilder").copy();
-                modifiedField(bl, "consumers", Reflect.<Consume[]>get(Block.class, bl, "consumers"));
                 boolean hadItems = bl.hasItems, hadLiquids = bl.hasLiquids, hadPower = bl.hasPower, acceptedItems = bl.acceptsItems;
                 reset(() -> {
+                    Reflect.set(Block.class, bl, "consumeBuilder", prevBuilder);
                     bl.reinitializeConsumers();
                     bl.hasItems = hadItems;
                     bl.hasLiquids = hadLiquids;

tests/src/test/java/PatcherTests.java

@@ -138,6 +138,26 @@ public class PatcherTests{
         assertEquals(prev, reconstructor.upgrades);
     }
 
+    @Test
+    void consumeApply() throws Exception{
+        Vars.state.patcher.apply(Seq.with(
+        """
+        block.conveyor.consumes: {power: 1}
+        """
+        ));
+
+        assertNoWarnings();
+        assertTrue(Blocks.conveyor.hasPower);
+        assertNotNull(Blocks.conveyor.consPower);
+        assertEquals(1, Blocks.conveyor.consumers.length);
+
+        resetAfter();
+
+        assertFalse(Blocks.conveyor.hasPower);
+        assertNull(Blocks.conveyor.consPower);
+        assertEquals(0, Blocks.conveyor.consumers.length);
+    }
+
     @Test
     void unitWeapons() throws Exception{
         UnitTypes.dagger.checkStats();