$ git clone -n https://src.fedoraproject.org/rpms/perl-IO-Socket-IP.git /var/lib/mock/f45-build-24157-602/root/chroot_tmpdir/scmroot/perl-IO-Socket-IP
Cloning into '/var/lib/mock/f45-build-24157-602/root/chroot_tmpdir/scmroot/perl-IO-Socket-IP'...
$ git fetch origin bceb1a9c9624ecec8555bff48511627f2ff487a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IO-Socket-IP
 * [new ref]         bceb1a9c9624ecec8555bff48511627f2ff487a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bceb1a9 Perl 5.44 re-rebuild of bootstrapped packages