[Bug] incorrect indent of next heading after org-paste-subtree

[Max Nikulin]

Another old bug with org-paste-subtree.

It make indentation of next heading wrong.

Consider the following document and follow described steps:

---- >8 ----
#+STARTUP: indent
Enable soft indent mode

Put to kill ring some text *without trailing newline*
that represents a subtree. In my case it is generated
by a browser extension.
#+begin_src elisp :results silent
  (kill-new "* Pasted Header\nPasted body")
#+end_src

Several levels of heading to make the problem apparent:
* H1
** H2
Ensure that the following "H3" heading is expanded,
put cursor to this line and try =C-c C-x C-y=
or [[elisp:(org-paste-subtree)]]
*** H3
:PROPERTIES:
:CUSTOM_ID: h3
:END:
Body
---- 8< ----

Actual result:

---- >8 ----
Several levels of heading to make the problem apparent:
* H1
*** H2
    Ensure that the following "H3" heading is expanded,
    put cursor to this line and try =C-c C-x C-y=
    or elisp:(org-paste-subtree)
***** Pasted Header
      Pasted body
***** H3
  :PROPERTIES:
  :CUSTOM_ID: h3
  :END:
  Body
---- 8< ----

Expected result

---- >8 ----
Several levels of heading to make the problem apparent:
* H1
*** H2
    Ensure that the following "H3" heading is expanded,
    put cursor to this line and try =C-c C-x C-y=
    or elisp:(org-paste-subtree)
***** Pasted Header
      Pasted body
***** H3
      :PROPERTIES:
      :CUSTOM_ID: h3
      :END:
      Body
---- 8< ----

Org mode version 9.5 (release_9.5-225-g494c20