Fix SectionPermissionChecker combination

src/main/java/com/moulberry/axiom/integration/SectionPermissionChecker.java

@@ -13,10 +13,10 @@ public interface SectionPermissionChecker {
         if (first.noneAllowed() || second.noneAllowed()) {
             return NONE_ALLOWED;
         }
-        if (first.allAllowed()) {
+        if (first == ALL_ALLOWED) {
             return second;
         }
-        if (second.allAllowed()) {
+        if (second == ALL_ALLOWED) {
             return first;
         }
 
@@ -25,6 +25,10 @@ public interface SectionPermissionChecker {
             return NONE_ALLOWED;
         }
 
+        if (first.allAllowed() && second.allAllowed()) {
+            return new AllAllowedInBox(intersect);
+        }
+
         return new SectionPermissionChecker() {
             @Override
             public boolean allAllowed() {

src/main/resources/plugin.yml

@@ -24,7 +24,7 @@ permissions:
 
   axiom.allow_copying_other_plots:
     description: This permission allows users to copy other user's plots
-    default: false # true
+    default: true
   axiom.can_import_blocks:
     description: Allows players to import schematics/blueprints into Axiom
     default: true