https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=33268

David Gustafsson <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Text to go in the|                            |This enhancement changes
      release notes|                            |how marc overlay rules are
                   |                            |evaluated. Before the
                   |                            |change rules with filter
                   |                            |set to '*' (wildcard) where
                   |                            |only applied when no other
                   |                            |rules had been defined for
                   |                            |a specific filter value,
                   |                            |regardless of if any of the
                   |                            |rules with that filter
                   |                            |value matched or not. With
                   |                            |this change we fallback to
                   |                            |the wildcard filter rules
                   |                            |even though rules with a
                   |                            |matching filter value do
                   |                            |exists, if no rule for that
                   |                            |filter value matches. This
                   |                            |resolves the issue of
                   |                            |having to repeat the same
                   |                            |default rules for each
                   |                            |filter value rule set. If
                   |                            |for some filter value the
                   |                            |wildcard filter rules
                   |                            |should be overridden, a
                   |                            |wildcard tag rule for that
                   |                            |filter value can be defined
                   |                            |which will have higher
                   |                            |precedence and override all
                   |                            |the filter wildcard rules.
                   |                            |In summary, the rules will
                   |                            |applied as follows: - A
                   |                            |matching rule is looked for
                   |                            |based on context (module
                   |                            |and filter value), if
                   |                            |multiple contexts matches
                   |                            |rules for the module with
                   |                            |highest priority are used.
                   |                            |The module priority is
                   |                            |(from highest to lowest)
                   |                            |"User name", "Patron
                   |                            |category" and "Source". -
                   |                            |If no matching rule is
                   |                            |found, we fallback to the
                   |                            |wildcard filter rules of
                   |                            |the current context module.
                   |                            |For Koha installations
                   |                            |where marc overlay rules is
                   |                            |in use a database migration
                   |                            |will run that creates new
                   |                            |rules if necessary to
                   |                            |preserve the current
                   |                            |behavior, so no user action
                   |                            |needs to be taken in order
                   |                            |to correct for this change.

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