$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-Fast.git /var/lib/mock/f40-build-779276-130260/root/chroot_tmpdir/scmroot/perl-XML-Fast
Cloning into '/var/lib/mock/f40-build-779276-130260/root/chroot_tmpdir/scmroot/perl-XML-Fast'...
$ git fetch origin 25adfdfcce19b5f6854b228ce36b485b98a04b18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-Fast
 * [new ref]         25adfdfcce19b5f6854b228ce36b485b98a04b18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25adfdf Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild