Fixed changed prefabs not serializing occasionally

Sometimes play mode options are disabled but DisableDomainReload flag is still set, so we need to check if the options are enabled

Author: SolidAlloy

Editor/Prefab Handling/ChangedPrefabs.cs

@@ -59,7 +59,7 @@ public static void SerializeIfNeeded()
             // Serialization is only needed if prefabs are edited before entering play mode and the domain will reload.
             // In all other cases, changes to prefabs will be reverted before a domain reload.
 #if UNITY_2019_3_OR_NEWER
-            if (EditorSettings.enterPlayModeOptions.HasFlag(EnterPlayModeOptions.DisableDomainReload))
+            if (EditorSettings.enterPlayModeOptionsEnabled && EditorSettings.enterPlayModeOptions.HasFlag(EnterPlayModeOptions.DisableDomainReload))
                 return;
 #endif