=== modified file 'common.zsh'
--- common.zsh	2017-12-13 00:55:44 +0000
+++ common.zsh	2017-12-13 00:54:25 +0000
@@ -110,7 +110,7 @@
 	(($#args)) && die "$0: args already defined"
 	local arg
 	local -A unseen
-	unseen=( "${(kv@)vars}" )
+	unseen=( "${(kv@}vars}" )
 	for arg in "$@"; do
 		case $arg in
 			(*=*)