fix: don't set rootfile/tab markup unless project load successful
fix: don't set rootfile/tab markup unless project load successful

jmarshallnz/gummi,tonyolag/gummi-vim,tonyolag/gummi-vim,tonyolag/gummi-vim,jmarshallnz/gummi,jmarshallnz/gummi,jmarshallnz/gummi,tonyolag/gummi-vim