unable to add custom property to action column

[michabbb]

i try to add "header" and get:

TypeError: 'null' is not an object

version: 410

[michabbb]

please fix this as soon as possible, i really need a header for action columns !! :((

[michabbb]

workaround: promote to own class, then its working

[aconran]

http://www.sencha.com/forum/showthread.php?196202-Adding-custom-properies-show-error

It will be fixed in an update in the next few days.

[oscmejia]

days? really?? this is a really important feature.