$ git clone -n https://src.fedoraproject.org/rpms/perl-Task-Kensho-Exceptions.git /var/lib/mock/f45-build-26458-617/root/chroot_tmpdir/scmroot/perl-Task-Kensho-Exceptions
Cloning into '/var/lib/mock/f45-build-26458-617/root/chroot_tmpdir/scmroot/perl-Task-Kensho-Exceptions'...
$ git fetch origin b67178a16410c0ff2c58d8e5773fe34bcdd488a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Task-Kensho-Exceptions
 * [new ref]         b67178a16410c0ff2c58d8e5773fe34bcdd488a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b67178a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild