Fix tag source linking

src/data/battler-tags.ts

@@ -250,6 +250,10 @@ export class InfatuatedTag extends BattlerTag {
     pokemon.scene.queueMessage(getPokemonMessage(pokemon, ' got over\nits infatuation.'));
   }
 
+  isSourceLinked(): boolean {
+    return true;
+  }
+
   getDescriptor(): string {
     return 'infatuation';
   }

src/data/splash-messages.ts

@@ -1,6 +1,7 @@
 export const splashMessages = [
   'Join the Discord!',
   'Infinite Levels!',
+  'Everything Stacks!',
   'Optional Save Scumming!',
   '35 Biomes!',
   'Open Source!',

src/field/pokemon.ts

@@ -1366,7 +1366,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
   }
 
   removeTagsBySourceId(sourceId: integer): void {
-    this.findAndRemoveTags(t => t.sourceId === sourceId);
+    this.findAndRemoveTags(t => t.isSourceLinked() && t.sourceId === sourceId);
   }
 
   transferTagsBySourceId(sourceId: integer, newSourceId: integer): void {