fix: workflow node selection state not sync caused problem

[iamjoel]

Select the Knowledge Retrieval node and then select other node, sometimes the Knowledge Retrieval node may be selected too.

Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint && make type-check (backend) and cd web && pnpm exec vp staged (frontend) to appease the lint gods

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.99%. Comparing base (cae9923) to head (13899bc).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #36390   +/-   ##
=======================================
  Coverage   85.98%   85.99%           
=======================================
  Files        4458     4458           
  Lines      211898   211895    -3     
  Branches    39535    39533    -2     
=======================================
- Hits       182210   182209    -1     
+ Misses      26473    26471    -2     
  Partials     3215     3215           

Flag	Coverage Δ
dify-ui	94.80% <ø> (ø)
web	86.57% <100.00%> (+<0.01%)	⬆️

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