[issue43296] [sqlite3] Fix sqlite3_value_blob() usage

[Erlend Egeberg Aasland]

Change by Erlend Egeberg Aasland <erlend.aasland at innova.no>:


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title: [sqlite3] sqlite3_value_bytes() should be called after sqlite3_value_blob() -> [sqlite3] Fix sqlite3_value_blob() usage

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43296>
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