write action is taken explicitly after dialog is shown

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/AddExternalLibraryToDependenciesQuickFix.java

@@ -78,4 +78,9 @@ class AddExternalLibraryToDependenciesQuickFix extends AddOrderEntryFix {
         }
       }.execute());
   }
+
+  @Override
+  public boolean startInWriteAction() {
+    return false;
+  }
 }