shithub: hugo

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tplimpl: Fix data race in resGetResource

Fixes #3045

--- a/tpl/tplimpl/template_resources.go

+++ b/tpl/tplimpl/template_resources.go

@@ -49,8 +49,8 @@

 	if _, ok := l.m[url]; !ok {

 		l.m[url] = &sync.Mutex{}

 	}

-	l.Unlock() // call this Unlock before the next lock will be called. NFI why but defer doesn't work.

 	l.m[url].Lock()

+	l.Unlock()

 }

 // URLUnlock unlocks an URL when the download has been finished. Use only in defer calls.