blob/fileblob: clean up temp file on BeforeWrite error#3733
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vangent merged 1 commit intoJun 20, 2026
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Fixes a leak in fileblob's NewTypedWriter when BeforeWrite returns an error. The temp file is created before BeforeWrite runs, so an early callback error left the file open and on disk.
This closes and removes the temp file before returning the callback error, and adds a regression test that captures the temp filename through BeforeWrite and verifies it has been removed.
Tested: