Inserting space in dijit/Editor (versions 1.7 to 1.10) causes layout and functional issues in IE, Edge

[damons]

Adding spaces close to the edges of the dijit/Editor widget causes multiple layout and functional issues issues:

1. some words are pushed down into the next line.
2. a scroll bar appears in the middle of the editor panel.
3. text justifying behaves strangely once the scrollbar appears.

I have seen this issue in both IE 10 and 11 and dojo versions 1.7 to 1.10.

To reproduce:

1. Just go to the dojo documentation of dijit/Editor at http://dojotoolkit.org/reference-guide/1.10/dijit/Editor.html

2. Run the declarative example, click inside the editor, and type some text.

3. Once you are close to the edge of the editor, just hold the space key down for a few seconds.

[bill]

Happens in second editor of test_Editor.html, master branch, IE8-11 and Edge. Perhaps an issue with inserting   instead of plain spaces.

[dylan]

Moving all Editor tickets to 1.12 for now.

[dylan]

Ticket planning... move current 1.12 tickets out to 1.13 that likely won't get fixed in 1.12.