**Describe the bug** props in vue js component with default value to `true` and a story which have the props set to `false` in the template not init correctly the component in storybook. **To Reproduce** Steps to reproduce the behavior: I do a component using vue js. This component have a props `isPrimary` with default value set to `true`. In the template of the story is set this props to `false`. **Additional info** If you set to `false` as default in the component and set to `true` the template in the story, the storybook behavior is correct. We see the control set to `true` and the component display `true`. **Expected behavior** I expected to see the control set to `false`. And my component receive a props with `false` **Screenshots** [![bug](https://i.postimg.cc/L8Rq1LZG/Capture-d-e-cran-2021-03-05-a-14-45-40.png)](https://postimg.cc/cr94qKhc) After toggling `true/false` storybook behavior is as expected. **Code snippets** The vue component: ```vue ``` The story: ```mdx import { Meta, Story, Canvas } from "@storybook/addon-docs/blocks" import { TestBoolean } from "../../../components" export const Template = (args, { argTypes }) => ({ props: Object.keys(argTypes), template: '', })

``` **System** ``` Environment Info: System: OS: macOS 11.2.1 CPU: (8) x64 Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz Binaries: Node: 12.20.0 - ~/.asdf/installs/nodejs/12.20.0/bin/node npm: 6.14.8 - ~/.asdf/installs/nodejs/12.20.0/bin/npm Browsers: Chrome: 88.0.4324.192 Safari: 14.0.3 npmPackages: @storybook/addon-backgrounds: ^6.1.17 => 6.1.17 @storybook/addon-docs: ^6.1.16 => 6.1.17 @storybook/addon-essentials: ^6.1.16 => 6.1.17 @storybook/addon-links: ^6.1.16 => 6.1.17 @storybook/theming: ^6.1.16 => 6.1.17 @storybook/vue: ^6.1.16 => 6.1.17 ```

Control boolean with default value in component is not initialized correctly (vue js component) #14149

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