
It is possible to create draft releases prior to creating a tag. This will cause a 500 on the releases page due to compare page failing. This PR only shows the compare button if there is a SHA1 present. Fix #16610 Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Lauris BH <lauris@nix.lv> Co-authored-by: techknowlogick <techknowlogick@gitea.io>