fixed #2261

(check for selectedBlock before declaring an InputSlotMorph to be "empty")

HISTORY.md

@@ -1,6 +1,9 @@
 # Snap<em>!</em> (BYOB) History
 
 ## in development
+###2018-11-13
+* Blocks: fixed #2261 (check for selectedBlock before declaring an InputSlotMorph to be "empty")
+
 ###2018-11-12
 * new dev version
 * BYOB: updated version date

snap.html

@@ -6,7 +6,7 @@
         <link rel="shortcut icon" href="src/favicon.ico">
         <script type="text/javascript" src="src/morphic.js?version=2018-10-02"></script>
         <script type="text/javascript" src="src/widgets.js?version=2018-10-02"></script>
-        <script type="text/javascript" src="src/blocks.js?version=2018-11-06"></script>
+        <script type="text/javascript" src="src/blocks.js?version=2018-11-13"></script>
         <script type="text/javascript" src="src/threads.js?version=2018-10-26"></script>
         <script type="text/javascript" src="src/objects.js?version=2018-11-12"></script>
         <script type="text/javascript" src="src/gui.js?version=2018-11-12"></script>

src/blocks.js

@@ -148,7 +148,7 @@ CustomCommandBlockMorph, SymbolMorph, ToggleButtonMorph, DialMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.blocks = '2018-November-06';
+modules.blocks = '2018-November-13';
 
 var SyntaxElementMorph;
 var BlockMorph;
@@ -8997,7 +8997,7 @@ InputSlotMorph.prototype.evaluate = function () {
 };
 
 InputSlotMorph.prototype.isEmptySlot = function () {
-    return this.contents().text === '';
+    return this.contents().text === '' && !this.selectedBlock;
 };
 
 // InputSlotMorph single-stepping: