$ git clone -n https://src.fedoraproject.org/rpms/golang-github-markbates-errx.git /var/lib/mock/f40-build-2446918-61328/root/chroot_tmpdir/scmroot/golang-github-markbates-errx
Cloning into '/var/lib/mock/f40-build-2446918-61328/root/chroot_tmpdir/scmroot/golang-github-markbates-errx'...
$ git fetch origin 48a0acee7a9daf749e8b686f17557253ba9def70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-markbates-errx
 * [new ref]         48a0acee7a9daf749e8b686f17557253ba9def70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48a0ace Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild