results:

  number
  relativenumber

  number
  relativenumber
:setlocal must NOT reset the other global value

  number

  relativenumber
:setglobal MUST reset the other global value

  number

  relativenumber
:set MUST reset the other global value

  number

  relativenumber

Testing findfile

src/testdir/test19.in
testdir/test19.in
testdir/test19.in