'iconEditSettings' => ['show' => 'none'] breaks with latest dev-master

[Dunc80]

Prerequisites

• [x] I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• [x] The issue still exists against the latest master branch of yii2-tree-manager.
• [x] This is not an usage question. I confirm having gone through and read the documentation and demos.
• [x] This is not a general programming / coding question. (Those should be directed to the webtips Q & A forum).
• [x] I have attempted to find the simplest possible steps to reproduce the issue.
• [ ] I have included a failing test as a pull request (Optional).

Steps to reproduce the issue

1. use this line 'iconEditSettings' => ['show' => 'none'], to remove the icon options
2. It works perfectly on version 1.1.2,
3. upgrade to "kartik-v/yii2-tree-manager": "dev-master",

Expected behavior and actual behavior

When I follow those steps, I see... This error "Operation Disallowed Invalid request signature detected during tree data manage action! Please refresh the page and retry. OLD HASH: 6f8d7be0ce5729706..... NEW HASH: 3a0f3df848dfb...... "

commenting out that one line makes it work again //'iconEditSettings' => ['show' => 'none'],

I only updated to 'dev-master' to test another bug, I just returned to version 1.1.2 and it's fine again.

Browsers

• [x] Google Chrome
• [ ] Mozilla Firefox
• [ ] Internet Explorer
• [ ] Safari

Operating System

• [ ] Windows
• [ ] Mac OS X
• [x] Linux
• [ ] Mobile

Libraries

• jQuery version:
• yii2-tree-manager version:

Isolating the problem

• [ ] This bug happens on the demos page
• [ ] The bug happens consistently across all tested browsers
• [ ] This bug happens when using yii2-tree-manager without other plugins.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.