$ git clone -n https://src.fedoraproject.org/rpms/perl-Package-Stash.git /var/lib/mock/f40-build-2628475-65465/root/chroot_tmpdir/scmroot/perl-Package-Stash
Cloning into '/var/lib/mock/f40-build-2628475-65465/root/chroot_tmpdir/scmroot/perl-Package-Stash'...
$ git fetch origin e61e89bd58b328ca760df1c66a2cc7df0fecb216:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Package-Stash
 * [new ref]         e61e89bd58b328ca760df1c66a2cc7df0fecb216 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e61e89b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild