Action mappings not working anymore

[tobiasengelhardt]

Minimal reproduction of the bug/regression with instructions:

Use Version 11.0.0 of the tree. No actions are triggered, for example opening a node.

Expected behavior:

Actions should be triggered.

Versions of Angular Tree Component, Angular, Node, affected browser(s) and operating system(s):

11.0.0 and 11.0.1

Other information:

I would be willing to submit a PR to fix this issue

[ ] Yes (Assistance will be provided if you need help to submit a pull request)
[ ] No