No Undo for category deletion

What I did: I accidentally deleted a category with a project in it then tried to undo the operation

What happened: it undo(ed) the last text editing action

What I expected: to recover the deleted category

Things that might be helpful to know (Agenda version, OS and model, etc):
agenda 2.0 - OSX 10.12.6

Thanks for reporting, this is fixed in the 2.1 update.