Fix Neutralizing Gas self-suppression (#1662)

src/field/pokemon.ts

@@ -978,7 +978,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     }
     if (this.isOnField() && !ability.hasAttr(SuppressFieldAbilitiesAbAttr)) {
       const suppressed = new Utils.BooleanHolder(false);
-      this.scene.getField(true).map(p => {
+      this.scene.getField(true).filter(p => p !== this).map(p => {
         if (p.getAbility().hasAttr(SuppressFieldAbilitiesAbAttr) && p.canApplyAbility()) {
           p.getAbility().getAttrs(SuppressFieldAbilitiesAbAttr).map(a => a.apply(this, false, suppressed, [ability]));
         }