$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-Virt.git /var/lib/mock/f40-build-779667-130430/root/chroot_tmpdir/scmroot/perl-Sys-Virt
Cloning into '/var/lib/mock/f40-build-779667-130430/root/chroot_tmpdir/scmroot/perl-Sys-Virt'...
$ git fetch origin 838edb1acece3fe5455415d758b5486076db583e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-Virt
 * [new ref]         838edb1acece3fe5455415d758b5486076db583e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 838edb1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild