$ git clone -n https://src.fedoraproject.org/rpms/perl-Ref-Util-XS.git /var/lib/mock/f40-build-778700-130070/root/chroot_tmpdir/scmroot/perl-Ref-Util-XS
Cloning into '/var/lib/mock/f40-build-778700-130070/root/chroot_tmpdir/scmroot/perl-Ref-Util-XS'...
$ git fetch origin 110e1554c6034cad7f86cc7807c07f9094b04abf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Ref-Util-XS
 * [new ref]         110e1554c6034cad7f86cc7807c07f9094b04abf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 110e155 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild