$ git clone -n https://src.fedoraproject.org/rpms/perl-Validation-Class.git /var/lib/mock/f40-build-2310060-57394/root/chroot_tmpdir/scmroot/perl-Validation-Class
Cloning into '/var/lib/mock/f40-build-2310060-57394/root/chroot_tmpdir/scmroot/perl-Validation-Class'...
$ git fetch origin c896a88a4045550000bd7c0789489481b5b109a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Validation-Class
 * [new ref]         c896a88a4045550000bd7c0789489481b5b109a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c896a88 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild