Niels de Vos 6df173dbf3 journal: only destroy the connection if it is set
Prevent re-use of a destroyed connection by setting it to `nil`. This
way it is also safe to call `Destroy()` multiple times without causing a
panic.

Signed-off-by: Niels de Vos <ndevos@ibm.com>
2024-10-14 14:54:29 +00:00
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