$ git checkout this-page
error: pathspec 'this-page' did not match any file(s) known to git

404: merge conflict

<<<<<<< HEAD (what you were looking for) a page that exists ======= absolutely nothing. void. /dev/null. >>>>>>> reality

This conflict can't be auto-resolved. You'll have to pick a side — and one of them is a dead end.

accept HEAD → go home git blame → tell Boban