$ git clone -n https://src.fedoraproject.org/rpms/perl-JSON-Tiny.git /var/lib/mock/f40-build-2305327-57078/root/chroot_tmpdir/scmroot/perl-JSON-Tiny
Cloning into '/var/lib/mock/f40-build-2305327-57078/root/chroot_tmpdir/scmroot/perl-JSON-Tiny'...
$ git fetch origin 373fca025cc7dfabbc04077d1214c54373e85bb9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-JSON-Tiny
 * [new ref]         373fca025cc7dfabbc04077d1214c54373e85bb9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 373fca0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild