fix(core): fix field destroyed still can be assigned value

[janryWang]

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What have you changed?

Fixed #3109

[codecov]

Codecov Report

Merging #3115 (d4ebffd) into formily_next (7d731af) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##           formily_next    #3115   +/-   ##
=============================================
  Coverage         96.08%   96.08%           
=============================================
  Files               149      149           
  Lines              6518     6520    +2     
  Branches           1812     1815    +3     
=============================================
+ Hits               6263     6265    +2     
  Misses              225      225           
  Partials             30       30           

Impacted Files	Coverage Δ
packages/core/src/models/Field.ts	98.57% <100.00%> (+0.01%)	⬆️

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[github-actions]

Size Change: +14 B (0%)

Total Size: 507 kB

Filename	Size	Change
packages/core/dist/formily.core.umd.development.js	19.9 kB	+2 B (0%)
packages/core/dist/formily.core.umd.production.js	13.4 kB	+12 B (0%)

ℹ️ View Unchanged

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