3 files changed, 15 insertions, 3 deletions
diff --git a/history.txt b/history.txt
index 774f798..573786d 100755
--- a/history.txt
+++ b/history.txt
@@ -2214,3 +2214,7 @@ ______
 140721
 ------
 * fixed #518
+
+140722
+------
+* Objects, Threads: fixed #521 (deleting variable watchers by dropping them on the palette results in wrong ones to be created when showing them again)
diff --git a/objects.js b/objects.js
index e395369..af68ceb 100644
--- a/objects.js
+++ b/objects.js
@@ -125,7 +125,7 @@ PrototypeHatBlockMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.objects = '2014-July-17';
+modules.objects = '2014-July-22';
 
 var SpriteMorph;
 var StageMorph;
@@ -3545,6 +3545,9 @@ SpriteMorph.prototype.toggleVariableWatcher = function (varName, isGlobal) {
     }
 
     // if no watcher exists, create a new one
+    if (isNil(isGlobal)) {
+        isGlobal = contains(this.variables.parentFrame.names(), varName);
+    }
     watcher = new WatcherMorph(
         varName,
         this.blockColor.variables,
diff --git a/threads.js b/threads.js
index 9251b95..fccb2a3 100644
--- a/threads.js
+++ b/threads.js
@@ -83,7 +83,7 @@ ArgLabelMorph, localize, XML_Element, hex_sha512*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.threads = '2014-July-21';
+modules.threads = '2014-July-22';
 
 var ThreadManager;
 var Process;
@@ -1109,6 +1109,7 @@ Process.prototype.doShowVar = function (varName) {
         target,
         label,
         others,
+        isGlobal,
         name = varName;
 
     if (name instanceof Context) {
@@ -1135,7 +1136,11 @@ Process.prototype.doShowVar = function (varName) {
                 return;
             }
             // if no watcher exists, create a new one
-            if (target.owner) {
+            isGlobal = contains(
+                this.homeContext.receiver.variables.parentFrame.names(),
+                varName
+            );
+            if (isGlobal || target.owner) {
                 label = name;
             } else {
                 label = name + ' (temporary)';