git: don't show incorrect notification about "local changes not restored"

Follow-up: 9d9c015

plugins/git4idea/src/git4idea/update/GitUpdateProcess.java

@@ -241,7 +241,11 @@ public class GitUpdateProcess {
         notifyImportantError(myProject, "Error updating " + rootName,
                              "Updating " + rootName + " failed with an error: " + e.getLocalizedMessage());
       }
-    });
+    }) {
+      protected boolean shouldNotifyLocalChangesAreNotRestored() {
+        return unstashAfterUpdate();
+      }
+    };
     myPreservingProcess.execute(() -> {
       if (!unstashAfterUpdate()) return false;
 

plugins/git4idea/src/git4idea/util/GitPreservingProcess.java

@@ -100,7 +100,7 @@ public class GitPreservingProcess {
             LOG.debug("loading");
             load();
           }
-          else {
+          else if (shouldNotifyLocalChangesAreNotRestored()) {
             mySaver.notifyLocalChangesAreNotRestored();
           }
         }
@@ -111,6 +111,10 @@ public class GitPreservingProcess {
     new GitFreezingProcess(myProject, myOperationTitle, operation).execute();
   }
 
+  protected boolean shouldNotifyLocalChangesAreNotRestored() {
+    return true;
+  }
+
   /**
    * Configures the saver: i.e. notifications and texts for the GitConflictResolver used inside.
    */