shithub: hugo

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tpl: Must do a extra lookup of cloned base templates

See #2549
Fixes #3013

--- a/tpl/template.go

+++ b/tpl/template.go

@@ -109,6 +109,10 @@

 	for k, v := range t.overlays {

 		vc := template.Must(v.Clone())

+		// The extra lookup is a workaround, see

+		// * https://github.com/golang/go/issues/16101

+		// * https://github.com/spf13/hugo/issues/2549

+		vc = vc.Lookup(vc.Name())

 		vc.Funcs(tmpl.funcster.funcMap)

 		tmpl.overlays[k] = vc

 	}