Don't remap refmaps if legacy mixin ap is disabled

src/loom11/kotlin/dev/architectury/plugin/loom/LoomInterface11.kt

@@ -50,6 +50,9 @@ class LoomInterface11(private val project: Project) : LoomInterface {
             extension.setGenerateSrgTiny(value)
         }
 
+    override val legacyMixinApEnabled: Boolean
+        get() = extension.mixin.useLegacyMixinAp.get()
+
     override val generateTransformerPropertiesInTask = true
 
     override fun settingsPostEdit(action: (config: LoomInterface.LoomRunConfig) -> Unit) {

src/main/kotlin/dev/architectury/plugin/ArchitecturyPluginExtension.kt

@@ -109,7 +109,10 @@ open class ArchitectPluginExtension(val project: Project) {
         )
 
         if (platform != "neoforge") {
-            map[BuiltinProperties.REFMAP_NAME] = loom.refmapName
+            if (loom.legacyMixinApEnabled) {
+                map[BuiltinProperties.REFMAP_NAME] = loom.refmapName
+            }
+
             map[BuiltinProperties.MAPPINGS_WITH_SRG] = loom.tinyMappingsWithSrg.toString()
         }
 

src/main/kotlin/dev/architectury/plugin/loom/LoomInterface.kt

@@ -48,6 +48,7 @@ interface LoomInterface {
     val tinyMappingsWithSrg: Path
     val refmapName: String
     var generateSrgTiny: Boolean
+    val legacyMixinApEnabled: Boolean get() = false
 
     /**
      * Loom 0.11+ has to generate the runtime transformer properties file