$ git clone -n https://src.fedoraproject.org/rpms/hamlib.git /var/lib/mock/f41-build-813567-148686/root/chroot_tmpdir/scmroot/hamlib
Cloning into '/var/lib/mock/f41-build-813567-148686/root/chroot_tmpdir/scmroot/hamlib'...
$ git fetch origin 1ddd0b6b1d823400cd69c5f7cbdee01230f021af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hamlib
 * [new ref]         1ddd0b6b1d823400cd69c5f7cbdee01230f021af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ddd0b6 Perl 5.40 rebuild