[feritcemkahraman]

After a form reset, entering the same multiline value again leaves the textarea at its default height. Moving the pointer over it before typing can also make autosizing treat the cleared height as a manual resize. Clear both cached values during reset.

The dependency-free browser regression covers initial sizing, reset, pointer movement and retyping the same value. It failed before the fix and passed in Chromium afterward; ESLint and both TypeScript builds passed. The existing npm test script has no tests; Firefox/WebKit were not run.

[Copilot]

🟡 Changes recommended

Mouse movement after reset can still disable autosizing because the cached height is not cleared.

1 open issue

• Reset cached textarea height to prevent false manual resize · New

What changed in this PR

Addresses textarea autosizing when the same multiline value is re-entered after a form reset.

Changes:

• Clears the previous-value cache on reset.
• Adds a browser regression page and instructions for running it.

File	Description
test/​reset.html	Checks initial sizing, reset, and same-value re-entry.
src/​index.js	Clears the cached value during form reset.
README.md	Documents the browser regression page.

_{Review effort: Max}

[Copilot]

🟢 Approval recommended

The cache resets address both reported failure paths, and no blocking issues remain.

No open issues 🎉

1 resolved since last review

• Reset cached textarea height to prevent false manual resize

_{Review effort: Max}