Fix edit -fifo without -scroll when the buffer is already opened
Fix edit -fifo without -scroll when the buffer is already opened

Scrolling was taking place in that case even though it was not
desired.

Somasis/kakoune,lenormf/kakoune,alexherbo2/kakoune,casimir/kakoune,lenormf/kakoune,alexherbo2/kakoune,mawww/kakoune,mawww/kakoune,casimir/kakoune,jkonecny12/kakoune,alexherbo2/kakoune,Somasis/kakoune,jjthrash/kakoune,occivink/kakoune,lenormf/kakoune,danr/kakoune,occivink/kakoune,occivink/kakoune,jjthrash/kakoune,jkonecny12/kakoune,jkonecny12/kakoune,jjthrash/kakoune,danr/kakoune,alexherbo2/kakoune,danr/kakoune,danr/kakoune,mawww/kakoune,mawww/kakoune,jjthrash/kakoune,jkonecny12/kakoune,lenormf/kakoune,casimir/kakoune,Somasis/kakoune,casimir/kakoune,Somasis/kakoune,occivink/kakoune