Fixed enemy cores being removed on map re-attempt

core/src/mindustry/core/Control.java

@@ -469,7 +469,7 @@ public class Control implements ApplicationListener, Loadable{
                             }}, () -> {
                                 var teamData = state.rules.defaultTeam.data();
 
-                                //all the old derelicts have to be removed.
+                                //all the derelicts from the new save have to be removed.
                                 for(var generatedDerelict : Team.derelict.data().buildings.<Building>toArray(Building.class)){
                                     generatedDerelict.tile.remove();
                                 }

core/src/mindustry/maps/generators/FileMapGenerator.java

@@ -101,7 +101,7 @@ public class FileMapGenerator implements WorldGenerator{
                         tile.build.items.clear();
                         tile.build.items.add(state.rules.loadout);
                     }
-                }else if(tile.build instanceof CoreBuild && tile.build.pos() != params.corePositionOverride){
+                }else if(tile.build instanceof CoreBuild && tile.team() == state.rules.defaultTeam && tile.build.pos() != params.corePositionOverride){
                     //other cores placed must be cleared; they have been overridden
                     tile.remove();
                 }