Fixed map re-import not working

core/src/mindustry/io/MapIO.java

@@ -97,6 +97,7 @@ public class MapIO{
             };
 
             ver.readRegion("content", stream, counter, ver::readContentHeader);
+            if(ver.version >= 11) ver.readRegion("content", stream, counter, ver::skipContentPatches);
             ver.readRegion("preview_map", stream, counter, in -> ver.readMap(in, new WorldContext(){
                 @Override public void resize(int width, int height){}
                 @Override public boolean isGenerating(){return false;}

core/src/mindustry/io/SaveVersion.java

@@ -505,6 +505,14 @@ public abstract class SaveVersion extends SaveFileReader{
         readWorldEntities(stream, mapping);
     }
 
+    public void skipContentPatches(DataInput stream) throws IOException{
+        int amount = stream.readUnsignedByte();
+        for(int i = 0; i < amount; i++){
+            int len = stream.readInt();
+            stream.skipBytes(len);
+        }
+    }
+
     public void readContentPatches(DataInput stream) throws IOException{
         Seq<String> patches = new Seq<>();