V0.2.0: Corrected some misc. item buff detach logic

src/com/shatteredpixel/shatteredpixeldungeon/items/rings/Ring.java

@@ -160,8 +160,8 @@ public class Ring extends KindofMisc {
 			hero.belongings.misc2 = null;
 		}
 		
-		hero.remove( buff );
-		buff = null;
+		buff.detach();
+        buff = null;
 		
 		hero.spendAndNext( TIME_TO_EQUIP );
 		

src/com/shatteredpixel/shatteredpixeldungeon/items/rings/RingOfMight.java

@@ -49,6 +49,7 @@ public class RingOfMight extends Ring {
             if (level > 0){
                 target.HT -= level*5;
             }
+            super.detach();
         }
     }
 }