fix: Form.Item init status should also check help

[zombieJ]

🤔 This is a ...

• New feature
• Bug fix
• Site / document update
• Component style update
• TypeScript definition update
• Refactoring
• Code style optimization
• Test Case
• Branch merge
• Other (about what?)

🔗 Related issue link

fix #21206

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix Form.Item with help first time hide will make layout jump.
🇨🇳 Chinese	修复 Form.Item 使用 help 第一次去除消息会引发布局抖动的问题。

☑️ Self Check before Merge

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• TypeScript definition is updated/provided or not needed
• Changelog is provided or not needed

[ant-design-bot]

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit bfb6e6e:

Sandbox	Source
antd reproduction template	Configuration
condescending-brattain-8hw18	Issue #21206
loving-breeze-9ttro	Issue #21206

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 540a295:

Sandbox	Source
antd reproduction template	Configuration
flamboyant-wind-8igtn	Issue #21206
gallant-wave-dm930	Issue #21206

[codecov]

Codecov Report

Merging #21211 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master   #21211   +/-   ##
=======================================
  Coverage   97.49%   97.49%           
=======================================
  Files         296      296           
  Lines        6918     6918           
  Branches     1920     1921    +1     
=======================================
  Hits         6745     6745           
  Misses        173      173

Impacted Files	Coverage Δ
components/form/FormItem.tsx	99.01% <100%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e550921...540a295. Read the comment docs.