fix playerdata saving. how could that even happen

build.gradle

@@ -7,7 +7,7 @@ sourceCompatibility = JavaVersion.VERSION_1_8
 targetCompatibility = JavaVersion.VERSION_1_8
 
 archivesBaseName = project.archives_base_name
-version = project.mod_version
+version = project.minecraft_version+"-"+project.mod_version
 group = project.maven_group
 
 repositories {

src/main/java/com/flemmli97/flan/mixin/PlayerClaimMixin.java

@@ -31,7 +31,7 @@ public abstract class PlayerClaimMixin implements IClaimData {
         this.claimData.read(this.server);
     }
 
-    @Inject(method = "readCustomDataFromTag", at = @At("RETURN"))
+    @Inject(method = "writeCustomDataToTag", at = @At("RETURN"))
     private void writeData(CompoundTag tag, CallbackInfo info) {
         this.claimData.save(this.server);
     }