$ git clone -n https://src.fedoraproject.org/rpms/perl-SDL.git /var/lib/mock/f45-build-26064-614/root/chroot_tmpdir/scmroot/perl-SDL
Cloning into '/var/lib/mock/f45-build-26064-614/root/chroot_tmpdir/scmroot/perl-SDL'...
$ git fetch origin 53b9bdc1fe4ecc0f2362ac1166e4dadbbd92c940:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-SDL
 * [new ref]         53b9bdc1fe4ecc0f2362ac1166e4dadbbd92c940 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53b9bdc Perl 5.44 rebuild