Classification Editor doesn't work

Description

Using classification editor leads to exceptions (eg. try to open genre -> article in MIR)

... after this error is thrown, search and detail view doesn't work anymore. I get an timeout while trying to lock table.

An application restarts helps to bring MIR back to work.

Environment

None

Assignee

René Adler

Reporter

Kathleen Neumann

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URL

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External issue ID

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Components

Fix versions

Affects versions

Priority

High
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