seems like it really is not there on ci

ci-tools/update-nixpkgs

@@ -41,6 +41,7 @@ export SOURCE_BRANCH="nixpkgs-upgrade-$(date +%Y-%m-%d)"
 git clone . working-copy
 cd working-copy
 git branch -D "${SOURCE_BRANCH}" || true
+git fetch origin develop
 git checkout -B "${SOURCE_BRANCH}" origin/develop
 
 echo '{}' > morph/grid/local/public-keys/users.nix