dont work if document change avoid exception

Author: tranleduy2000

app/src/main/java/com/duy/ccppcompiler/diagnostic/DiagnosticPresenter.java

@@ -51,6 +51,7 @@ public DiagnosticPresenter(DiagnosticContract.View view, EditorActivity activity
         }
     }
 
+    @SuppressWarnings("ConstantConditions")
     @MainThread
     @Override
     public void onDiagnosticClick(View view, Diagnostic diagnostic) {
@@ -63,6 +64,9 @@ public void onDiagnosticClick(View view, Diagnostic diagnostic) {
             if (pair != null) {
                 int index = pair.first;
                 EditorDelegate editorDelegate = pair.second;
+                if (editorDelegate.isChanged()) {
+                    return;
+                }
 
                 mTabManager.setCurrentTab(index);
                 editorDelegate.doCommand(new Command(Command.CommandEnum.REQUEST_FOCUS));