migrate author servflags for {x} (and related commands) creates duplicate servflags/servflag@type="createby" elements

Description

This seems to occur when the whole servflags element is not present before command executen.

E.g. https://archive.thulb.uni-jena.de/hisbest/receive/HisBest_imgitem_00000237?XSL.Style=xml

Environment

None

Assignee

Thomas Scheffler

Reporter

Silvio Hermann

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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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