Each time we have a missing user (because it was deleted), we get a:

> Notice:  Undefined variable: user_name in include/ws_functions/pwg.php on line 1000

This makes the JSON output of method `pwg.history.search` unparsable for page [Administration > Tools > History > tab Search].
[pwg.history.search] notice on missing users
This is a GitHub Issue
repo:Piwigo
owner:Piwigo
Title : [pwg.history.search] notice on missing users
Issue date:

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Each time we have a missing user (because it was deleted), we get a:

> Notice:  Undefined variable: user_name in include/ws_functions/pwg.php on line 1000

This makes the JSON output of method `pwg.history.search` unparsable for page [Administration > Tools > History > tab Search].
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