fix: dont merge arrays in mergeForm

[rburgst]

• this causes form submissions to be duplicated when having an array field in your form

Example of the problem: https://stackblitz.com/edit/tanstack-form-vdj4yh?file=src%2Fapp%2Fshared-code.ts

Just try to submit the form and watch the todos to be duplicated

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[pkg-pr-new]

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More templates

• @tanstack/form-example-angular-array
• @tanstack/form-example-angular-simple
• @tanstack/form-example-angular-valibot
• @tanstack/form-example-angular-yup
• @tanstack/form-example-angular-zod
• @tanstack/form-example-lit-simple
• @tanstack/form-example-lit-ui-libraries
• @tanstack/form-example-react-array
• @tanstack/field-errors-from-form-validators
• @tanstack/form-example-react-next-server-actions
• @tanstack/form-example-react-query-integration
• @tanstack/form-example-react-simple
• @tanstack/form-example-react-tanstack-start
• @tanstack/form-example-react-ui-libraries
• @tanstack/form-example-react-valibot
• @tanstack/form-example-react-yup
• @tanstack/form-example-react-zod
• @tanstack/form-example-solid-array
• @tanstack/form-example-solid-simple
• @tanstack/form-example-solid-valibot
• @tanstack/form-example-solid-yup
• @tanstack/form-example-solid-zod
• @tanstack/form-example-vue-array
• @tanstack/form-example-vue-simple
• @tanstack/form-example-vue-valibot
• @tanstack/form-example-vue-yup
• @tanstack/form-example-vue-zod

@tanstack/angular-form

pnpm add https://pkg.pr.new/@tanstack/angular-form@995

@tanstack/form-core

pnpm add https://pkg.pr.new/@tanstack/form-core@995

@tanstack/react-form

pnpm add https://pkg.pr.new/@tanstack/react-form@995

@tanstack/solid-form

pnpm add https://pkg.pr.new/@tanstack/solid-form@995

@tanstack/lit-form

pnpm add https://pkg.pr.new/@tanstack/lit-form@995

@tanstack/valibot-form-adapter

pnpm add https://pkg.pr.new/@tanstack/valibot-form-adapter@995

@tanstack/vue-form

pnpm add https://pkg.pr.new/@tanstack/vue-form@995

@tanstack/yup-form-adapter

pnpm add https://pkg.pr.new/@tanstack/yup-form-adapter@995

@tanstack/zod-form-adapter

pnpm add https://pkg.pr.new/@tanstack/zod-form-adapter@995

commit: a4bee41

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.43%. Comparing base (5473bb8) to head (a4bee41).
Report is 152 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #995      +/-   ##
==========================================
- Coverage   91.55%   88.43%   -3.13%     
==========================================
  Files          21       26       +5     
  Lines         900     1072     +172     
  Branches      206      262      +56     
==========================================
+ Hits          824      948     +124     
- Misses         71      115      +44     
- Partials        5        9       +4     

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[rburgst]

not sure why codecov/project is still failing

[Balastrong]

I'm not 100% sure this is the right direction but also I can't think of a better one to prevent duplication so... let's go this way! Thanks for the fix :)