fa1f9226d7
Drag-drop operation of outliner doesn't allow dragging linked collection ID. Poll function returns false for non-editable IDs. This make sense if drop target is `INTO` linked collection.To fix this, support drag-drop operation for `before/after` case and return false when insert type is `TE_INSERT_INTO`. Pull Request: https://projects.blender.org/blender/blender/pulls/140848