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The "Add a variable" drawer (and other editors built on `UserDraft.useMany`)
opened empty: for a brand-new item `editPath` is undefined so the spec path is
empty, which routes through `useMany`'s empty-path branch. That branch handed
out a `makeDetachedHandle()` whose cell was initialized to `undefined`,
ignoring the spec's `defaultValue`. The editor binds its form behind
`{#if current}` where `current = states[ws]?.draft`, so an undefined cell left
the drawer with just the title and a Save button.
Seed the detached handle with `defaultValue`, and re-seed it when the caller
supplies a fresh `defaultValue` reference (reopening the drawer clones a new
default) so a reopened editor starts clean instead of replaying the previous
session's edits — the reference is stable within a session, so live edits are
never clobbered. Also drop detached handles that fall out of the specs so they
don't leak.
Regression from #9351 (db-backed user drafts).
Fixes WIN-2054
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Windmill frontend
The Windmill frontend written in Svelte 5 + Tailwind CSS
The frontend is under AGPL, see the LICENSE file at the root of this repo