TreePanel with "rootVisible: false" not showing anything in Ext 4.2

[VDP]

REQUIRED INFORMATION

Ext version tested:

• Ext 4.2.0

Browser versions tested against:

• Chrome Version 25.0.1364.172 m

Description:
I can't get the treepanel working in the new Ext 4.2.0 version. Specifically when I don't want the root to be visible. I provide 2 test cases.

Steps to reproduce the problem:

• define, create and load an 'Ext.data.TreeStore',
• create a treepanel with the rootVisible set to false.

The result that was expected:

• list of folders (optionally leafs, but not in my test data)

The result that occurs instead:

• no list empty, 0 height panel showing.

Test Case:

working Ext 4.1.1 example:
http://jsfiddle.net/Vandeplas/y9WhL/12

broken Ext 4.2.0 example:
http://jsfiddle.net/Vandeplas/y9WhL/16/

HELPFUL INFORMATION

See this URL for live test case:http://jsfiddle.net/Vandeplas/y9WhL/16/

Additional CSS used:

• only default ext-all-debug.css

Operating System:

• Windows 7 - 64Bit

[mitchellsimoens]

It looks like it's the leaf field that you have in your model.

[VDP]

Thanks for putting me on the right track!

The issue was indeed with the converter on the leaf field. Behind the scenes Ext creates a root node if no root node is present. In previous versions the newly created root node wasn't passed through the converter in Ext 4.2 it is past through the converter. In my case I checked if type is 'folder'. But the root field has no type resulting in being a leaf. Resulting in not showing anything. (because the root was hidden)

working fiddle with logging

http://jsfiddle.net/Vandeplas/y9WhL/19/