The issue was that changing the area did not immediately update the
`snode->edittree` when changing between different node editor types. That update
only happened later in `node_area_refresh`. However, by that time, the `poll`
function of the modal operator has already succeeded even though when there
operator actually starts `poll` would not succeed anymore.
Pull Request: https://projects.blender.org/blender/blender/pulls/129870
05e27b4aec