$ git clone -n https://src.fedoraproject.org/rpms/perl-Sub-Identify.git /var/lib/mock/f45-build-26375-617/root/chroot_tmpdir/scmroot/perl-Sub-Identify
Cloning into '/var/lib/mock/f45-build-26375-617/root/chroot_tmpdir/scmroot/perl-Sub-Identify'...
$ git fetch origin 45140455df1c5f2e2befb8d1f74babeea5f6e425:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sub-Identify
 * [new ref]         45140455df1c5f2e2befb8d1f74babeea5f6e425 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4514045 Perl 5.44 rebuild