IDEA-163238 Synchronize settings make the IDE unusable

platform/configuration-store-impl/src/SchemeManagerImpl.kt

@@ -334,6 +334,8 @@ class SchemeManagerImpl<T : Scheme, MUTABLE_SCHEME : T>(val fileSpec: String,
     removeExternalizableSchemes()
 
     loadSchemes()
+
+    (processor as? LazySchemeProcessor)?.reloaded()
   }
 
   private fun removeExternalizableSchemes() {

platform/platform-impl/src/com/intellij/openapi/editor/colors/impl/EditorColorsManagerImpl.java

@@ -135,6 +135,12 @@ public class EditorColorsManagerImpl extends EditorColorsManager implements Pers
 
         return scheme.isEqualToBundled(bundledScheme);
       }
+
+      @Override
+      public void reloaded() {
+        initEditableDefaultSchemesCopies();
+        initEditableBundledSchemesCopies();
+      }
     }
     mySchemeManager = schemeManagerFactory.create(FILE_SPEC, new EditorColorSchemeProcessor());
 

platform/projectModel-impl/src/com/intellij/configurationStore/scheme-impl.kt

@@ -69,6 +69,9 @@ abstract class LazySchemeProcessor<SCHEME : Scheme, MUTABLE_SCHEME : SCHEME>(pri
   open fun isSchemeDefault(scheme: MUTABLE_SCHEME, digest: ByteArray) = false
 
   open fun isSchemeEqualToBundled(scheme: MUTABLE_SCHEME) = false
+
+  open fun reloaded() {
+  }
 }
 
 class DigestOutputStream(val digest: MessageDigest) : OutputStream() {