Fix prefix completion in prompt
Fix prefix completion in prompt

alpha123/kakoune,danr/kakoune,flavius/kakoune,rstacruz/kakoune,zakgreant/kakoune,casimir/kakoune,jkonecny12/kakoune,Asenar/kakoune,alpha123/kakoune,flavius/kakoune,danielma/kakoune,elegios/kakoune,flavius/kakoune,lenormf/kakoune,xificurC/kakoune,lenormf/kakoune,casimir/kakoune,ekie/kakoune,danr/kakoune,alexherbo2/kakoune,danielma/kakoune,jkonecny12/kakoune,zakgreant/kakoune,ekie/kakoune,jkonecny12/kakoune,lenormf/kakoune,rstacruz/kakoune,zakgreant/kakoune,danr/kakoune,flavius/kakoune,Somasis/kakoune,rstacruz/kakoune,elegios/kakoune,xificurC/kakoune,ekie/kakoune,Somasis/kakoune,rstacruz/kakoune,Somasis/kakoune,casimir/kakoune,occivink/kakoune,xificurC/kakoune,ekie/kakoune,alexherbo2/kakoune,mawww/kakoune,mawww/kakoune,elegios/kakoune,lenormf/kakoune,Somasis/kakoune,alexherbo2/kakoune,Asenar/kakoune,jjthrash/kakoune,occivink/kakoune,danielma/kakoune,jjthrash/kakoune,alpha123/kakoune,jjthrash/kakoune,occivink/kakoune,danielma/kakoune,alpha123/kakoune,elegios/kakoune,danr/kakoune,alexherbo2/kakoune,xificurC/kakoune,Asenar/kakoune,jkonecny12/kakoune,Asenar/kakoune,mawww/kakoune,occivink/kakoune,casimir/kakoune,mawww/kakoune,jjthrash/kakoune,zakgreant/kakoune