$ git clone -n https://src.fedoraproject.org/rpms/perl-UUID.git /var/lib/mock/f45-build-27305-622/root/chroot_tmpdir/scmroot/perl-UUID
Cloning into '/var/lib/mock/f45-build-27305-622/root/chroot_tmpdir/scmroot/perl-UUID'...
$ git fetch origin 2f83ad5552281306b59d9983d9a07e51e9f40c00:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-UUID
 * [new ref]         2f83ad5552281306b59d9983d9a07e51e9f40c00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f83ad5 Perl 5.44 rebuild