With respect to this comment https://github.com/MichaelMure/git-bug/issues/99#issuecomment-471210546. If multiple lables are included in the query :
for eg: --label:easypick --label:hard git-bug fetches those which have either easypick OR hard whereas according to the github convention multiple labels specified should use AND and return bugs with both labels.
Michael Muré (MichaelMure) closed the bug