https://bugzilla.wikimedia.org/show_bug.cgi?id=28075

           Summary: Expansion of #ask's default= parameter should be
                    deferred
           Product: MediaWiki extensions
           Version: any
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: Semantic MediaWiki
        AssignedTo: [email protected]
        ReportedBy: [email protected]
                CC: [email protected]


#ask is unnecessarily expanding default=, it should be deferring expansion like
#if and other parser functions do.

This means that for templates using something like:
{{#ask: ...some query... | default= {{#ask: ...some fallback query... }} }}

The second #ask is always executed, running unnecessary extra sql queries and
affecting performance in cases where the first #ask does in fact have contents.

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