* Augment target node check strict, instead of printing a warning, it will terminate with error.

* Fixed: [Augment that reference a submodule as target node fails #178](https://github.com/clicon/clixon/issues/178)
* Fixed a memory error that was reported in slack by Pawel Maslanka
  * The crash printout was: `realloc(): invalid next size Aborted`

test/test_api.sh

@@ -259,19 +259,17 @@ if [ $RC -ne 0 ]; then
     stop_restconf
 fi
 
-if [ $BE -eq 0 ]; then
-    exit # BE
+if [ $BE -ne 0 ]; then
+    new "Kill backend"
+    # Check if premature kill
+    pid=`pgrep -u root -f clixon_backend`
+    if [ -z "$pid" ]; then
+	err "backend already dead"
+    fi
+    # kill backend
+    stop_backend -f $cfg
 fi
 
-new "Kill backend"
-# Check if premature kill
-pid=`pgrep -u root -f clixon_backend`
-if [ -z "$pid" ]; then
-    err "backend already dead"
-fi
-# kill backend
-stop_backend -f $cfg
-
 # unset conditional parameters 
 unset format