FIX: using typeset should not found datatype value inside a block

```
>> find reduce [integer! binary!] series!
== none ;<--- was not none before

>> find reduce [integer! "aha"] series!
== ["aha"]
```

related to: Oldes/Rebol-issues#256

Author: Oldes

src/core/t-block.c

@@ -158,7 +158,7 @@ static void No_Nones_Or_Logic(REBVAL *arg) {
 			}
 			if (IS_TYPESET(target)) {
 				if (TYPE_CHECK(target, VAL_TYPE(value))) return index;
-				if (IS_DATATYPE(value) && TYPE_CHECK(target, VAL_DATATYPE(value))) return index;
+				//if (IS_DATATYPE(value) && TYPE_CHECK(target, VAL_DATATYPE(value))) return index; //@@ issues/256
 				if (IS_TYPESET(value) && EQUAL_TYPESET(value, target)) return index;
 			}
 			if (flags & AM_FIND_MATCH) break;

src/tests/units/datatype-test.r3

@@ -25,6 +25,12 @@ Rebol [
 	--test-- "find datatype!"
 	;@@ https://github.com/Oldes/Rebol-issues/issues/256
 		--assert found? find [#[datatype! string!] #[datatype! binary!]] #[datatype! binary!]
+		--assert found? find reduce [string! binary!] binary!
+		--assert found? find [#[datatype! string!] #[datatype! binary!]] #[datatype! binary!]
+		--assert found? find ["test"] string!
+		--assert found? find ["test"] series!
+		--assert  none? find reduce [integer! binary!] series!
+		--assert ["aha"] = find reduce [integer! "aha"] series!
 
 ===end-group===