fluid regulators now check that the correct amount of fluid was moved (#4693)

Author: Bumperdo09

src/main/java/com/gregtechceu/gtceu/common/cover/FluidRegulatorCover.java

@@ -103,7 +103,7 @@ private int transferExact(IFluidHandler source, IFluidHandler destination, int p
                 continue;
 
             int insertableAmount = destination.fill(drained.copy(), FluidAction.SIMULATE);
-            if (insertableAmount <= 0)
+            if (insertableAmount != supplyAmount)
                 continue;
 
             drained.setAmount(insertableAmount);