$ git clone -n https://src.fedoraproject.org/rpms/perl-Router-Simple.git /var/lib/mock/f40-build-2629886-65607/root/chroot_tmpdir/scmroot/perl-Router-Simple
Cloning into '/var/lib/mock/f40-build-2629886-65607/root/chroot_tmpdir/scmroot/perl-Router-Simple'...
$ git fetch origin 17847e8acd5a9b0c92086e7fdb81a6970039d8df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Router-Simple
 * [new ref]         17847e8acd5a9b0c92086e7fdb81a6970039d8df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17847e8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild