V7 Backports

[agubler]

Type: feature

The following has been addressed in the PR:

• There is a related issue
• All code has been formatted with prettier as per the readme code style guidelines
• Unit or Functional tests are included in the PR

Description:

Backports of #802, #812 and #818

[codesandbox-ci]

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[codecov]

Codecov Report

Merging #823 into v7 will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##               v7     #823   +/-   ##
=======================================
  Coverage   97.52%   97.53%           
=======================================
  Files         126      126           
  Lines        7933     7936    +3     
  Branches     1826     1827    +1     
=======================================
+ Hits         7737     7740    +3     
  Misses        196      196           

Impacted Files	Coverage Δ
src/testing/renderer.ts	97.58% <ø> (ø)
src/core/vdom.ts	97.98% <100.00%> (+<0.01%)	⬆️

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