$ git clone -n https://src.fedoraproject.org/rpms/golang-github-git-billy-5.git /var/lib/mock/f40-build-2000433-44464/root/chroot_tmpdir/scmroot/golang-github-git-billy-5
Cloning into '/var/lib/mock/f40-build-2000433-44464/root/chroot_tmpdir/scmroot/golang-github-git-billy-5'...
$ git fetch origin 0f02220473687f3687826e3903d3f324fe90eb23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-git-billy-5
 * [new ref]         0f02220473687f3687826e3903d3f324fe90eb23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f02220 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild