Unsaved export not offered for auto-import after reopening the importing file #64953

After the following sequence, an export that exists only as unsaved content is not offered for auto-import.

Repro

https://github.com/johnsoncodehk/tsgo-auto-import-unsaved-export-repro

npm ci
npm run repro

With tsc --lsp --stdio:

1. Open importer.ts (not on disk) with export {};.
2. Request a completion in importer.ts.
3. Close importer.ts.
4. Open exporter.ts (empty on disk) with export function unsavedFn() {}.
5. Reopen importer.ts with unsavedFn;, then request a completion at the end of unsavedFn, or call the API's getImportEditsForSymbols(importer, [unsavedFn]).

Expected

The completion list contains unsavedFn as an auto-import from ./exporter, and getImportEditsForSymbols returns an import edit.

Actual

The completion list has no auto-import entry for unsavedFn, and getImportEditsForSymbols returns [].

FAIL 0/5  [API] getImportEditsForSymbols, unsaved export, auto-imports computed before
FAIL 0/5  [LSP] completion,               unsaved export, auto-imports computed before
PASS 5/5  [API] getImportEditsForSymbols, unsaved export, no auto-imports before
PASS 5/5  [LSP] completion,               unsaved export, no auto-imports before
PASS 5/5  [API] getImportEditsForSymbols, saved export,   auto-imports computed before
PASS 5/5  [LSP] completion,               saved export,   auto-imports computed before

Environment

• typescript@7.1.0-beta; also reproduces with typescript@7.0.2 and typescript@7.1.0-dev.20261024.1
• Node v24.15.0, macOS 26.3 (arm64)