Fixed a bug with OptionalEntry

Also added DefaultValueEntry.makeOptional()

gradle.properties

@@ -9,7 +9,7 @@ parchment_version=1.19.4:2023.06.26
 loader_version=0.14.21
 
 # Mod Properties
-mod_version=1.2.0
+mod_version=1.3.0
 maven_group=ir.mehradn
 archives_base_name=mehrad-config
 

src/main/java/ir/mehradn/mehradconfig/entry/DefaultValueEntry.java

@@ -28,12 +28,23 @@ protected DefaultValueEntry(String name, @NotNull T defaultValue) {
      *
      * @param fallbackEntry the config entry that should provide the default value, avoid using a config entry from the same config
      * @return an optional entry
-     * @see OptionalEntry
+     * @see OptionalEntry#OptionalEntry(ConfigEntry, ConfigEntry)
      */
     public OptionalEntry<T> makeOptional(ConfigEntry<T> fallbackEntry) {
         return new OptionalEntry<>(this, fallbackEntry);
     }
 
+    /**
+     * Creates an optional entry from this config entry. If you use this overload, you must call {@link OptionalEntry#setFallbackEntry} as soon as
+     * possible before using any of the other methods, doing otherwise will cause unexpected behaviours.
+     *
+     * @return an optional entry
+     * @see OptionalEntry#OptionalEntry(ConfigEntry)
+     */
+    public OptionalEntry<T> makeOptional() {
+        return new OptionalEntry<>(this);
+    }
+
     @Override
     public String getName() {
         return this.name;

src/main/java/ir/mehradn/mehradconfig/entry/OptionalEntry.java

@@ -129,6 +129,7 @@ public JsonElement toJson() {
 
     @Override
     public void fromJson(JsonElement json) {
+        this.hasValue = true;
         this.optionalEntry.fromJson(json);
     }
 
@@ -139,6 +140,7 @@ public void writeToBuf(FriendlyByteBuf buf) {
 
     @Override
     public void readFromBuf(FriendlyByteBuf buf) {
+        this.hasValue = true;
         this.optionalEntry.readFromBuf(buf);
     }