fixed #2783

HISTORY.md

@@ -16,13 +16,17 @@
 * **Notable Fixes:**
     * don't show internal "compile" reporter in search results
     * fixed a bug for showing the senders of a message
+    * compiled "find first" now also reports empty instead of false if none is found
 * **Documentation Updates:**
     * updated manual with hyper-semantics of ITEM OF, thanks Brian!
 * **Translation Updates:**
     * German
 
+### 2021-02-15
+* threads: fixed #2783
+
 ### 2021-02-14
-* fixed transcription typos in strideTranspose(), thanks, Brian!
+* lists: fixed transcription typos in strideTranspose(), thanks, Brian!
 
 ### 2021-02-13
 * blocks, threads, lists: distinguish between "columns" (<3D) and (deep) "transpose"

snap.html

@@ -9,7 +9,7 @@
         <script src="src/symbols.js?version=2020-10-07"></script>
         <script src="src/widgets.js?version=2021-01-05"></script>
         <script src="src/blocks.js?version=2021-02-13"></script>
-        <script src="src/threads.js?version=2021-02-13"></script>
+        <script src="src/threads.js?version=2021-02-15"></script>
         <script src="src/objects.js?version=2021-02-11"></script>
         <script src="src/gui.js?version=2021-02-04"></script>
         <script src="src/paint.js?version=2020-05-17"></script>

src/threads.js

@@ -61,7 +61,7 @@ StageMorph, SpriteMorph, StagePrompterMorph, Note, modules, isString, copy, Map,
 isNil, WatcherMorph, List, ListWatcherMorph, alert, console, TableMorph, BLACK,
 TableFrameMorph, ColorSlotMorph, isSnapObject, newCanvas, Symbol, SVG_Costume*/
 
-modules.threads = '2021-February-13';
+modules.threads = '2021-February-15';
 
 var ThreadManager;
 var Process;
@@ -6347,7 +6347,7 @@ Process.prototype.reportAtomicFindFirst = function (reporter, list) {
             return src[i];
          }
     }
-    return false;
+    return '';
 };
 
 Process.prototype.reportAtomicCombine = function (list, reporter) {