$ git clone -n https://src.fedoraproject.org/rpms/Perlbal.git /var/lib/mock/f42-build-side-1-3517580-46098/root/chroot_tmpdir/scmroot/Perlbal
Cloning into '/var/lib/mock/f42-build-side-1-3517580-46098/root/chroot_tmpdir/scmroot/Perlbal'...
$ git fetch origin e385434b8fe68c266c6efd85890b450443112e3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Perlbal
 * [new ref]         e385434b8fe68c266c6efd85890b450443112e3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e385434 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild