fixed code of some examples

Documentation/Books/AQL/ExecutionAndPerformance/Optimizer.mdpp

@@ -30,6 +30,7 @@ You may use it like this: (we disable syntax highlighting here)
     @startDocuBlockInline AQLEXP_01_axplainer
     @EXAMPLE_ARANGOSH_OUTPUT{AQLEXP_01_axplainer}
     ~addIgnoreCollection("test")
+    ~db._drop("test");
     db._create("test"); 
     for (i = 0; i < 100; ++i) { db.test.save({ value: i }); }
     db.test.ensureIndex({ type: "skiplist", fields: [ "value" ] });

Documentation/Books/Manual/Indexing/Geo.mdpp

@@ -78,6 +78,7 @@ Create a geo index for a hash array attribute:
 
     @startDocuBlockInline geoIndexCreateForArrayAttribute2
     @EXAMPLE_ARANGOSH_OUTPUT{geoIndexCreateForArrayAttribute2}
+    ~db._drop("geo2")
     ~db._create("geo2")
     db.geo2.ensureIndex({ type: "geo", fields: [ "location.latitude", "location.longitude" ] });
     | for (i = -90;  i <= 90;  i += 10) {

Documentation/DocuBlocks/collectionNear.md

@@ -49,6 +49,7 @@ FOR doc IN NEAR(@@collection, @latitude, @longitude, @limit)
 To get the nearest two locations:
 
 @EXAMPLE_ARANGOSH_OUTPUT{007_collectionNear}
+~ db._drop("geo");
 ~ db._create("geo");
   db.geo.ensureIndex({ type: "geo", fields: [ "loc" ] });
   |for (var i = -90;  i <= 90;  i += 10) { 

js/server/modules/@arangodb/users.js

@@ -40,11 +40,12 @@ const ArangoError = arangodb.ArangoError;
 
 // converts a user document to the legacy format
 const convertToLegacyFormat = function (doc) {
+  let ad = doc.authData || {}; 
   return {
     user: doc.user,
-    active: doc.authData.active,
+    active: ad.active,
     extra: doc.userData || {},
-    changePassword: doc.authData.changePassword
+    changePassword: ad.changePassword
   };
 };