[11.x] Fix breaking change in RefreshDatabase
#54075
Merged
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This PR fixes a breaking chance introduced by #53997, as reported by this comment.
I haven't been able to reproduce it, but sometimes
$connection->getPdo()
can benull
.Also, you've asked if it was possible to test the changes in the original PR. I've tried, but I haven't been able to come up with a meaningful way to unit test this.