=== modified file 'bin/confz'
--- bin/confz	2014-06-19 16:51:38 +0000
+++ bin/confz	2014-06-19 16:50:45 +0000
@@ -86,7 +86,7 @@
 	# parse variable assignments
 	while (( $# )); do
 		case $1 in
-			(:*)   vars[${1#:}]=${vars_prev[${1#:}]};;
+			(:*)   vars[${1#:}]=vars_prev[${1#:}];;
 			(%*=*) lift[${${1#%}%%=*}]=${${1#%}#*=};;
 			(%*)   lift[${1#%}]=${1#%};;
 			(*=*)  vars[${1%%=*}]=${1#*=};;
@@ -124,7 +124,7 @@
 
 	# lift %variables from calee to caller
 	for outer inner in ${(kv)lift}; do
-		vars_prev[$outer]=${vars[$inner]}
+		vars_prev[$outer]=vars[$inner]
 	done
 
 	# restore old $vars and put calee's $vars into $vars_prev