Skip SkyLight update for Nether and End dimensions

src/mceditlib/relight/with_cython.pyx

@@ -373,7 +373,8 @@ def updateLightsByCoord(dim, x, y, z):
 
     ctx = RelightCtx(dim)
 
-    updateSkyLight(ctx, ax, ay, az)
+    if dim.hasSkyLight:
+        updateSkyLight(ctx, ax, ay, az)
 
     for i in range(<size_t>len(ax)):
         updateLights(ctx, ax[i], ay[i], az[i])

src/mceditlib/worldeditor.py

@@ -666,6 +666,10 @@ class WorldEditorDimension(object):
     def hasLights(self):
         return self.adapter.hasLights
 
+    @property
+    def hasSkyLight(self):
+        return self.dimName not in ("DIM1", "DIM-1")
+
     # --- Bounds ---
 
     _bounds = None