Merge branch 'maven_build_fix' into 'master'

Fix for broken Maven build

See merge request core-developers/forge!5122

forge-game/src/main/java/forge/game/trigger/Trigger.java

@@ -346,7 +346,8 @@ public abstract class Trigger extends TriggerReplacementBase {
             }
         }
 
-        if (!meetsCommonRequirements(this.mapParams))
+        // host controller will be null when adding card in a simulation game
+        if (this.getHostCard().getController() == null || !meetsCommonRequirements(this.mapParams))
             return false;
 
         return true;