fix(wechat): 修复更新已删除的节点导致报错的问题

[yesmeck]

close #1065

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[codecov]

Codecov Report

Merging #1078 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1078      +/-   ##
==========================================
+ Coverage   95.23%   95.24%   +0.01%     
==========================================
  Files         333      333              
  Lines        3629     3639      +10     
  Branches      517      520       +3     
==========================================
+ Hits         3456     3466      +10     
  Misses        172      172              
  Partials        1        1              

Impacted Files	Coverage Δ
packages/remax-runtime/src/Container.ts	98.57% <100.00%> (+0.23%)	⬆️

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