$ git clone -n https://src.fedoraproject.org/rpms/perl-File-Slurper.git /var/lib/mock/f40-build-2304328-57011/root/chroot_tmpdir/scmroot/perl-File-Slurper
Cloning into '/var/lib/mock/f40-build-2304328-57011/root/chroot_tmpdir/scmroot/perl-File-Slurper'...
$ git fetch origin 5c497d6b175b3a172a6ef6ff9366e5d2242a7e4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-Slurper
 * [new ref]         5c497d6b175b3a172a6ef6ff9366e5d2242a7e4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c497d6 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild