[Simulated AI] Get target candidates from the SA that requires targets, rather than the root one.

This makes sense correct target restrictions are used.

forge-ai/src/main/java/forge/ai/simulation/PossibleTargetSelector.java

@@ -70,7 +70,7 @@ public class PossibleTargetSelector {
         maxTargets = tgt.getMaxTargets(sa.getHostCard(), targetingSa);
 
         SimilarTargetSkipper skipper = new SimilarTargetSkipper();
-        for (GameObject o : tgt.getAllCandidates(sa, true)) {
+        for (GameObject o : tgt.getAllCandidates(targetingSa, true)) {
             if (maxTargets == 1 && skipper.shouldSkipTarget(o)) {
                 continue;
             }