fixed bug when deleting tiles

src/main/java/de/srsoftware/web4rail/conditions/BlockFree.java

@@ -45,6 +45,7 @@ public class BlockFree extends Condition {
 	@Override
 	protected void removeChild(BaseClass child) {
 		if (child == block) block = null;
+		super.removeChild(child);
 	}	
 
 	@Override

src/main/java/de/srsoftware/web4rail/conditions/ConditionList.java

@@ -122,6 +122,7 @@ public class ConditionList extends Condition implements Iterable<Condition>{
 	
 	@Override
 	public BaseClass remove() {
+		LOG.debug("Removing Condition List ({}) {}",id(),this);
 		super.remove();
 		while (!conditions.isEmpty()) conditions.lastElement().remove();
 		return this;
@@ -134,6 +135,7 @@ public class ConditionList extends Condition implements Iterable<Condition>{
 	@Override
 	public void removeChild(BaseClass child) {
 		conditions.remove(child);
+		super.removeChild(child);
 	}
 
 

src/main/java/de/srsoftware/web4rail/conditions/PushPullTrain.java

@@ -8,11 +8,6 @@ public class PushPullTrain extends Condition {
 	public boolean fulfilledBy(Context context) {
 		return context.train().pushPull != inverted;
 	}
-	
-	@Override
-	protected void removeChild(BaseClass child) {
-		// this class has no child elements
-	}
 
 	@Override
 	public String toString() {

src/main/java/de/srsoftware/web4rail/conditions/TrainHasTag.java

@@ -38,11 +38,6 @@ public class TrainHasTag extends Condition {
 		return super.properties(preForm, formInputs, postForm);
 	}
 	
-	@Override
-	protected void removeChild(BaseClass child) {
-		// this class has no child elements
-	}
-	
 	@Override
 	public String toString() {
 		if (tag == null) return "["+t("Click to setup tag")+"]";

src/main/java/de/srsoftware/web4rail/conditions/TrainLength.java

@@ -39,11 +39,6 @@ public class TrainLength extends Condition {
 		return super.properties(preForm, formInputs, postForm);
 	}
 	
-	@Override
-	protected void removeChild(BaseClass child) {
-		// this class has no child elements
-	}
-	
 	@Override
 	public String toString() {
 		return t(inverted ? "train is longer than {}" : "train is shorter than {}",maxLength) ;

src/main/java/de/srsoftware/web4rail/conditions/TrainSelect.java

@@ -40,6 +40,7 @@ public class TrainSelect extends Condition {
 	@Override
 	protected void removeChild(BaseClass child) {
 		if (child == train) train = null;
+		super.removeChild(child);
 	}
 	
 	@Override