=== modified file 'default.download-file.do'
--- default.download-file.do	2017-12-06 18:51:36 +0000
+++ default.download-file.do	2017-12-06 18:48:46 +0000
@@ -9,7 +9,7 @@
 	rest=/${${${vars[url]#*:}#/}#/}
 	vars[filename]=${DO:h:a}/downloads/${scheme}${rest:a}
 
-	if (($+no_refetch)) && [[ -n $no_refetch ]] && [[ -e $vars[filename] ]]; then
+	if (($+no_refetch)) && [[ -n $no_refetch ]] && [[ -e $vars[filename ]]; then
 		vars[sha256sum]=$(sha256sum $vars[filename]) \
 			|| die "Could not compute sha256sum"
 		vars[sha256sum]=${${vars[sha256sum]}%% *}