$ git clone -n https://src.fedoraproject.org/rpms/fedorainfinity-backgrounds.git /var/lib/mock/f40-build-1996255-43997/root/chroot_tmpdir/scmroot/fedorainfinity-backgrounds
Cloning into '/var/lib/mock/f40-build-1996255-43997/root/chroot_tmpdir/scmroot/fedorainfinity-backgrounds'...
$ git fetch origin 756b6217a8c1b606d24cffa8ca333d15305ac2ab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedorainfinity-backgrounds
 * [new ref]         756b6217a8c1b606d24cffa8ca333d15305ac2ab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 756b621 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild