$ git clone -n https://src.fedoraproject.org/rpms/celluloid.git /var/lib/mock/f40-build-2591804-62672/root/chroot_tmpdir/scmroot/celluloid
Cloning into '/var/lib/mock/f40-build-2591804-62672/root/chroot_tmpdir/scmroot/celluloid'...
$ git fetch origin f62f039cd7a28f57a4575f0b62bc851236cccca8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/celluloid
 * [new ref]         f62f039cd7a28f57a4575f0b62bc851236cccca8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f62f039 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild