$ git clone -n https://src.fedoraproject.org/rpms/fmt.git /var/lib/mock/f40-build-791615-137672/root/chroot_tmpdir/scmroot/fmt
Cloning into '/var/lib/mock/f40-build-791615-137672/root/chroot_tmpdir/scmroot/fmt'...
$ git fetch origin b78d96a0075ec0cd390f920c84d1f6e88b93a607:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fmt
 * [new ref]         b78d96a0075ec0cd390f920c84d1f6e88b93a607 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b78d96a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild