fix: take async into account for bindings/transitions/animations/attachments #17198
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…chments - block on async work - error at compile time on await expressions. Right now it gives confusing errors later at compile time or at runtime Fixes #17194
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Rich-Harris
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Nov 20, 2025
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would be nice to support await in attachments, but that can happen later — low priority
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Fixes #17194
Before submitting the PR, please make sure you do the following
feat:,fix:,chore:, ordocs:.packages/svelte/src, add a changeset (npx changeset).Tests and linting
pnpm testand lint the project withpnpm lint