Incorrect display of a double vertical bar inside a code block in a table

Bug graveyard
1

This text inside a table cell looks wrong:

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image

2

Please resubmit this bug report and make sure that: 1) you follow the bug report template, 2) you use the default theme (no css) and 3) there are no third-party plugins enabled (You can use the sandbox vault for 2 and 3).