[BUG] org-paste-subtree inserts empty line above paste

[Felix Wiemuth]

Emacs 28.1
Orgmode 9.5.2 (but discovered already 2020-01-20)

When pasting a subtree (of whichever level) with org-paste-subtree at 
any position (can be an empty line or a line with a header prefix, e.g. 
"*** "), always an empty line is inserted above the inserted subtree.

I would expect no new line to be inserted, and I think this was the 
behaviour before I noticed this.

The value of "org-blank-before-new-entry" is "((heading) 
(plain-list-item))".