$ git clone -n https://src.fedoraproject.org/rpms/perl-JSON-Create.git /var/lib/mock/f40-build-2305310-57077/root/chroot_tmpdir/scmroot/perl-JSON-Create
Cloning into '/var/lib/mock/f40-build-2305310-57077/root/chroot_tmpdir/scmroot/perl-JSON-Create'...
$ git fetch origin 089882b3242d426932c8cf2d82306db2f3232f4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-JSON-Create
 * [new ref]         089882b3242d426932c8cf2d82306db2f3232f4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 089882b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild