I know, the ticked "0004774" has been closed as "resolved" and every similar ticket gets relation to the "resolved" ticket, but this glitch is not resolved yet.
Deleting buildings still works like in the descriptions of the "resolved" ticket so it would be great if you could let it open till it really was resolved.
The steps below work even in the (yet) latest version 0.45 without being detected and still outline a huge problem for honest players: