fixed being unable to place the cursor at the end of a multi-line text

HISTORY.md

@@ -7,6 +7,10 @@
 * **Notable Fixes:**
     * fixed a costume-shrinkWrap edgecase bug, thanks, Brian, for reporting it!
     * fixed dynamic costume-inheritance for PASTE and CUT
+    * fixed being unable to place the cursor at the end of a multi-line text
+
+### 2020-11-12
+* morphic: fixed being unable to place the cursor at the end of a multi-line text
 
 ### 2020-11-11
 * objects: added meaningful defaults to blocks in the palette that didn't already have them

snap.html

@@ -5,7 +5,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <title>Snap! 6.3.2 - dev - Build Your Own Blocks</title>
         <link rel="icon" href="src/favicon.ico">
-        <script src="src/morphic.js?version=2020-11-02"></script>
+        <script src="src/morphic.js?version=2020-11-12"></script>
         <script src="src/symbols.js?version=2020-10-07"></script>
         <script src="src/widgets.js?version=2020-10-06"></script>
         <script src="src/blocks.js?version=2020-11-02"></script>

src/morphic.js

@@ -1280,7 +1280,7 @@
 
 /*global window, HTMLCanvasElement, FileReader, Audio, FileList, Map*/
 
-var morphicVersion = '2020-November-02';
+var morphicVersion = '2020-November-12';
 var modules = {}; // keep track of additional loaded modules
 var useBlurredShadows = true;
 
@@ -9438,7 +9438,7 @@ TextMorph.prototype.slotAt = function (aPoint) {
         charX = 0;
     }
     columnLength = this.lines[row - 1].length;
-    while (col < columnLength - 2 && aPoint.x - this.left() > charX) {
+    while (col < columnLength - 1 && aPoint.x - this.left() > charX) {
         charX += ctx.measureText(this.lines[row - 1][col]).width;
         col += 1;
     }