$ git clone -n https://src.fedoraproject.org/rpms/perl-WWW-Splunk.git /var/lib/mock/f45-build-27405-624/root/chroot_tmpdir/scmroot/perl-WWW-Splunk
Cloning into '/var/lib/mock/f45-build-27405-624/root/chroot_tmpdir/scmroot/perl-WWW-Splunk'...
$ git fetch origin ab7aebf06910211ff5e1a3d1ea92863b0b52d30e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-WWW-Splunk
 * [new ref]         ab7aebf06910211ff5e1a3d1ea92863b0b52d30e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab7aebf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild